[T-Mobile LG G3] boosting1bar:
Here's my copy and paste from another site reviewing the same three phones. This may be a good thread for people to detail their experience with the three big players.

"Alright so I've had it a few days now and here's what I think of it. Out****ingstanding.

Hardware - The metal looking plastic back is actually pretty nice. I think it actually has some metal in it, it doesn't feel plastic and cheap in the hand like the GS5 does. It doesn't have the heft of the M8 but it's also not as slippery as the M8 either. It's just about right. It's removable so it's easy to throw a spare battery in your car or camera bag or pocket or whatever if you're going to be out all day. That being said, the battery life is surprisingly good given the resolution/size of the display. Which brings me to the display. It's also outstanding. The first G3 I got had a weird yellowish tint to the display, did a little research and it seems there's some inconsistency among the displays from manufacture, I took it back to T-Mobile and they swapped it out without any hassle. It's huge, it's bright, it's incredibly sharp. There really isn't much bad I can say about the display. The buttons on the back took a little getting used to, but after a day you're used to them and it's actually quite natural to use them. The camera is awesome, I think it's bright light capabilities are on par or better than the M8 and definitely better than the S5. Under lower light it's at least on par or slightly better than the S5 and ****s on the M8. The OIS and "frikkin laser" focus is awesome, makes it really easy to pull it out and snap a pic really quick without the fuss the other two give. Wireless charging is available with an appropriate back cover, but more on that later. The single rear speaker is similarly placed to the S5 but it's much louder and your hand doesn't muffle it in regular use. Clarity is much better than the S5 as well. The M8 destroys all comers in this area with it's front facing speakers.

Software - The LG overlay is actually quite nice. I think it's just as good as HTC's Sense and kicks Touchwhiz in the grundel. It's easy enough to disable most stock LG apps if you want to. There's a faint touch of lag to the OS, not as bad as Touchwhiz but just a hair worse than Sense. If you kick the animations down to 0.5x from 1x in developer options it goes away. There's a health app, the people on xda seem to like it a lot but I don't use it.

Daily use - This thing really shines. The size is marginally bigger than the others in one dimension or another, but the shape of the back cover makes it perfectly comfortable to use and it doesn't feel at all as big as it actually is. The M8 feels really skinny next to it and the S5 feels like a giant, rectangular brick. Easy to use one handed, especially with the rear buttons. The OIS of the camera is really quite good and it's probably the first Android phone I've used that I think has a camera comparable to the quality output from the iPhones under all scenarios. Battery life has been great, I can easily get through a whole 12 hour shift at work and have plenty of battery to spare and I use the phone quite heavily and have music playing probably 10 of those 12 hours.

Signal strength - So I originally got the AT&T version before realizing those ****s disabled Qi charging in favor of PMA so I actually have some experience with the d850 (ATT) and d851 (TMo). The modems are the same between the two, the only hardware difference between the two devices I believe is AT&T's hardware removal of Qi. Both phones were on the same rev and they picked up signal the same as the S5 and a little worse than the M8 on AT&T. I have all Qi stuff so I said **** it and switched to TMo and have been quite pleasantly surprised. Their service in my area is great (better than AT&T coverage was) and the calls/sms/mms over WiFi is actually awesome, especially at work as most of the hospital is well insulated from outside communication. I also have unlimited everything for about $40/mo less than I was paying for 4gb at AT&T.

Advanced nerdy stuff (root) - If you root the phone, which is available for all variants and most with a one click utility, then the thing outshines the other 2 on all fronts. There's a mod for camera quality that kicks the image quality above the other 2 under all lighting conditions and increases the video recording quality to 1080p/60 and increases the bitrate of the 4k recording. There's a tweakbox that lets you customize the LG overlay to your personal taste and with a couple minor tweaks it is fastest experience of the 3. You can tinker with the volume of the speaker and the volume increments which is needed (30 vs stock 15 options). Then of course you can use Titanium Backup to freeze/uninstall all the carrier bloat. Xposed Framework of course brings hundreds of mods for just about anything you'd want to do.

Overall - Out of the box within confinements of not being rooted 9/10

----------- After root 10/10"