Short Story:
Have the M8. It sucks. Too big and too small. The screen is too small for the size of the phone due in part because of the front facing speakers. If I watched movies on it, I'd love the speakers, but I don't want to watch movies on it because the screen is 4.7". I mean, really? 4.7 is just a touch bigger than an iPhone which is really tiny compared to the M8. No, don't get the M8.
I also have the G2, and it's a great phone. The 5.2" display is great and I use it to watch Netflix with earbuds in. I mean, isn't that how we watch/listen to things on our phones anyway? I know I do. I'd be using the G2 as my daily carry if it wasn't such a great little phone. I'll need to explain that one below.
For now, if you need a phone today, get the G2. If you can wait until July, I'd get the G3. That's what I'm getting when it comes out to replace my M8. I am NOT replacing my G2.
Now for the rest of the long story about the G2:
We live out in the sticks and only have 3 options for internet. DSL at 300Kbs up and 2Mbs down, Satellite, or wireless radios shooting towers. None of those three options are very good. We had the DSL until VZW finally gave us 4G in our area a year ago. Wifey's work picked up a phone for her, so I had an extra smart phone on my plan with unlimited data. So I picked up a WiFi extender and plugged it into the WAN port of my router, then turned on the Hotspot with Verizon for my extra phone. Now we have 4G Internet throughout the house. The only problem was the phones I had where not cutting the mustard. We had to reboot everything daily. The Hotspot would intermittently drop for no reason. All kinds of problems. I tried an old Razr, an S3, even the dreaded iPhone. None of them ran great. Then I plugged in my G2 that I was carrying at the time. I thought, "Well if this works, I'll just get another G2." Yup. It works. I can't even remember the last time I rebooted anything. What a great phone. So why didn't I just buy another G2? I got caught up in the M8 hype. I thought, "Hey if the G2's this good, imagine how much better the M8'd be." Ya right. Talk about a step back in time. You don't realize it, but going from a 5.2" to a 4.7" display is noticeable. Especially when the phone size is bigger for the smaller screen. Bring on the G3 I say!