I think I saw you have one more day to decide, so assuming you havent bolted yet I'll add some of my 2 cents being a die hard, all-in android and google guy. I put my answers in with your questions.
So I'm a longtime Windows Phone user. The last time that I used an Android phone full time was the original Galaxy S (the Vibrant on T-Mobile). Since then, I've used a string of Windows Phone devices with the most recent being an unlocked Lumia 930 on T-Mobile. I was planning on getting a Lumia 950 or 950 XL as a replacement, but seeing the writing on the wall for the future of Windows phones I decided to give Android another try. I went ahead and bought a Nexus 6P and have been using it the past 10 days. Here are my notes:
1. Why can't I sync Facebook contacts to my phone or at least the Facebook profile pictures to my existing contacts? From what I've been able to find online, it's due to a change in the Facebook API, but it still works fine on my Lumia 930.
Google and facebook had a falling out a few years ago after android 4.0 released. Facebook changed their API and refused to allow google to use it in AOSP (vanilla android) so any phone running Vanilla android (Nexus phones and Google play edition phones) come without the ability to sync facebook contacts. There is a work around for this if you root your phone, but if you don't you can install sync.me (https://forums.androidcentral.com/e...?id=com.syncme.syncmeapp&hl=en&token=OyDldrqR) which will go through the contacts you have on your phone and the contacts you have in facebook and sync facebook profile photos over to your phone contacts if you have matches. This is the closest you can get to facebook contact syncing right now if you aren't rooted on a nexus.
2. Bluetooth music controls are frustrating and inconsistent. Listening to podcasts using the Pocketcasts app while using the Waze app, the skip back or skip forward controls work fine, but the play/pause control doesn't. However, using the same app while using Google Maps allows all the controls to work fine.
Cant really comment on this. I do not use waze but otherwise I have found bluetooth music controls to work just fine with any bluetooth device I've used.
3. I disabled Google Now in place of the Cortana app and changed the default search engine in Chrome to be Bing. However, there appears to be no way to change the search provider for the box at the top of the recent apps switcher.
Nope, no way to do this. Google now works very well though, and I see in another post you were giving it a shot. It does suck that windows 10 platform features and google features cant talk with each other, but thus is the nature of working with multiple platforms sadly.
4. Enabling "Hey, Cortana" breaks the speech-to-text feature of the Android keyboard. I chalked this up to the Cortana app being in beta and since I seldom use voice searches I simply disabled "Hey, Cortana."
Likely the reason.
5. The Android speech-to-text functionality is light years ahead of the same feature in Windows Phone. However, the shape writing feature and ability to edit text after typing on the Microsoft keyboard is much, much better than on the Android keyboard.
6. I miss being able to type a word and have a bunch of corresponding emoji appear in the autocorrect space.
Addressed with swiftkey
7. Swiping either way on an email from my Exchange accounts in the Gmail app does a "delete." I would prefer one direction to delete and the other direction to mark with a follow-up flag.
Try the app "Nine" (https://forums.androidcentral.com/e...s?id=com.ninefolders.hd3&hl=en&token=M31j417-) Arguably the best outlook app on the play store. Swipe right on an email for options to move to another folder, delete, and archive, swipe left to find by sender, follow up, and mark as read or unread. LOTS of other features on this app. It is 9.99 with a free two week trial but its the best money you can spend in the play store if you are looking for a quality exchange app.
8. The Outlook app doesn't have the ability to sync contacts to the phone. Having the accounts syncing in both the Outlook app and the built-in Gmail/Contacts/Calendar is a waste of bandwidth and, more importantly, battery.
See "Nine" again from above. Options to sync contacts with the google contacts app are there.
9. I love having a dedicated button for the recent task switcher.
One of my favorite and most widely used buttons. google did the three button on the bottom approach right.
10. I like having integrated access to Google Voice as my voicemail provider.
Verizon, so I dont use
unless im missing something, which is possible
11. I miss wireless charging way more than I though I would.
Personal preference, but i do prefer being able to pick up my phone and use it while its charging, and going from 15% to 45% in 15 mins is pretty awesome too.
12. The phone seems slow and choppy at times for a device with such high-end specs, especially in Chrome.
When Lollipop was introduced, Chrome was given an option to move all chrome tabs to the "recents" screen instead of opening a separate tab in the chrome app. a LOT of people initially noticed this caused some serious lag with their phone and chrome. There is an option to disable this feature in chrome. Tap the settings dots, go to "settings", tap "merge tabs and apps" and turn it OFF. You will have to manage tabs from within chrome instead of your recent apps screen, but it may solve some lag issues for you.
13. The battery life is terrible.
Battery life while the screen is off is phenomenal. It does seem to be a juice sucker when actively using the phone with the screen on though, which sadly has been a trait with pretty much every nexus phone. It has not (for me at least) been bad enough to be concerning, as with the same usage as my old phone I've still seen better battery life.
As far as the big reason that everyone gives for why Windows phones are dead and to move to Android, namely apps, I really haven't found that to be that big of a pull. The apps I use most are the phone, messaging, mail, calendar, web browser, camera, photo viewer, Pocketcasts, Audible, Groove music, Feedly reader, Weather Channel, MyRadar, MSN News, CNN, ESPN, Fitbit, Facebook, Twitter, TSheets, and Uber. The only one of those that would be lost by moving back to Windows Phone will be TSheets and I would simply need to go back to using the mobile web version. Admittedly, that would be a loss as the app experience for TSheets is better, but it wouldn't be the end of the world. I guess since I don't play games or watch video on my phone, use Snapchat, or care about banking on my phone, I simply don't currently care that much about the apps that are typically cited as "missing" on Windows Phone.
There's really no getting around the fact that the windows store app store is severely lacking. It's great that the apps you consider necessary are all available, but you also haven't really experienced the google or iOS app stores either, at least that's what I'm gathering. Some apps that I would consider to be essential would be: Tapatalk, Mint Bills and Finance, Citi and Chase Mobile Apps, Many of the google apps (again, im rooted into google quite a bit), strava app, garmin connect app (as i use a garmin cycling computer and fitness tracker), Splashtop remote desktop, wifi analyzer, billguard, paypal. From what I understand, most of these apps arent available on windows phone, which is really one of the only reasons I have not been able to try and pull the trigger on a windows phone yet. I love the windows phone interface, but I cant even entertain the idea of switching to it for any amount of time with the app store in the condition it is in. Definitely give the Android store a chance. You may find some new necessities that you didnt know you needed, or wanted
All that being said, I know that the "next big thing" in apps or the next piece of hardware that I buy will need an app only available for Android or iOS, which is why I decided to give Android a try again. But I have until November 21 to return the phone and, as of right now, I'm leaning that way. I just find myself missing the advantages of Windows Phone way more than I like the added apps of Android. Anyone care to tell me what I'm missing?