[Moto X General] 3UR0TR45H:
I got my hands on an LG G3 (D851 TMOUS 32/3) and have used it for a solid day. Coming off of 8 months on the Moto X (AT&T 16), there are some big pros and cons on both sides. Here are some thoughts so far:

1. The LG G3 has a BIG screen! Seriously, the entire Moto X is about the size of the G3 screen. I actually giggled when I got the X back in my hand because it looked and felt so tiny. It's a similar feeling to going from the X to an iPhone.

2. The G3 is big but much more manageable than the Note 3 or Oneplus One. The shape of the G3 is similar to the X but not quite as contoured. Still, the X (and HTC M7) really set the standard for ergonomics with the curved back. One of the things that makes the Note 3 & 1+1 so hard for me to use is that they are big flat slabs. The Moto X has spoiled my hand and the G3 fit very nicely. It was still a 1 hand device for me and I enjoyed using it.

3. The Moto X has a low res screen. There's simply no way around that. Of course, I'm comparing a bleeding edge 2014 phone to a 2012-spec'd phone, but you'll never notice a pixel on your Moto X (or Nexus 5) until you pick up the G3. I actually said "Wow!" multiple times while turning the G3 on during the day.

4. LG "simplicity" vs Moto simplicity. One of the big things LG said they did with the G3 was simplify the whole UI. While it's certainly simple compared to the G2, it's not in same league as the Moto X. The simplicity of the Moto X "Vanilla" easily beats out the G3 for ease of use and lightness. The G3 lags more than the X (which isn't much but it's there) and is much more complicated as far as tweaking goes. This really played into my modding tendencies but the straight-forward approach of the X won out. That being said, the LG UI feels infinitely more modern and makes the X feel frumpy and dated. Thank goodness for Nova!

5. Features/Gimmicks. The G3 is packed with features and many of them are actually useful. The IR blaster is great and works with my dinosaur Vizio TV. It's nice to have Qi charging back. The knock feature is actually really cool, and all the customizable UI elements are great. By far the best feature of the G3 is the removable battery and micro SD support. This is seriously nice to have back, no matter what anyone says. When you fly 10,000 miles a month like I do, it's nice to be able to have movies and music with you. The replaceable battery is nice for the same reason.

6. Battery life. I'm a power user and the battery life is the same. The G3 is maybe 5% better at best.

7. Thermal throttling. Yes, it happened right away with my G3. My brightness got knocked 10% and the device became very laggy as it was installing my apps (about 30)

8. Build quality. Both of these phones are excellent. The materials on the G3 are very nice and don't leave me wanting anything more.

9. Speaker. The G3 speaker blew me away. It's even better and louder than the Moto X speaker. Points to LG for that one. The speaker was one of the major downfalls of the N5 IMO.

10. Button placement. The button placement on the G3 actually makes a lot of sense and I prefer it to the Moto X setup.

11. Camera. The camera on the G3 focuses very fast and the OIS does wonders for phone photography. That being said, it isn't that much better than the X and honestly let me down a bit.

At the end of the day, the G3 is the second best phone I've ever used. It wasn't compelling enough for me to leave the Moto X just yet, not because the G3 is flawed, but because the X is just that good. I'm astounded!

Hopefully this is helpful/interesting to someone out there. I'm happy to answer any more questions.