Re: Switch to Apple from android
There are way too many open variables here to draw any kind of conclusion in the iOS -VS- Android war.
I too have been very impressed with my wifes iPhone 6s+. As you point out it runs cool, efficient and she easily has 60-70% battery left by bed time. I would consider her a light user in the day and a moderate user in the evening... emails, txt, low graphics games, etc. Pretty sure she leaves her screen brightness cranked up to 100 all the time too. She can easily go ~2.5 days if she just uses it for light duty voice and txt messaging. I absolutely give it that... out of box, no tweeks required battery life in her case has been excellent. If she took the time to dim her screen indoors it could go longer I am sure.
You can't deny how efficient the Apple closed ecosystem is. From the handset to the OS to the leverage Apple has on its carriers (USA), to the apps... everything is done the Apple way. Sure there are some inefficiencies here and there. But overall and relatively speaking its smooth. I commend them for keeping the carrier dogs in a short leash. While Android is at times hindered by carrier bloat, spotty OS updates, carrier in-store customer support, malicious questionable party apps...etc.
That being said, I get very good battery life on my LGV10 with similarly moderate use. I definitely do have to turn my screen brightness down though. Which is OK, since I find its screen too bright anyways. I also have to monitor my various apps background battery usage. Any rogue app that sucks battery in the background gets deleted or defeated. Facebook, Amazon and various Verizon carrier bloats were the worst offenders. I run Amazon in a www browser and Facebook in the tinfoil wrapper app. With all my apps I restrict their access. On that note, you really have to be careful what apps you install. Many are just a "front", they are really there just to collect personal information about the unsuspecting user. For that I find these forums and the moderators invaluable.
At a glance it sounds like you had some rogue apps running out of control and killing your battery.