The battery life is the biggest difference I can see at the moment between the two. I have both the LG and the Moto 360.
The LG lasted me the whole day with heavy use, always on and brightness level of 4. At the end of the day (typically 15-16 hours off charger), I would have 30-40% battery left. That's not quite good enough to last a whole second day, but I'm fine with charging it every night.
The Moto 360 typically lasts about 13-15 hours off charger for me with ambient mode off, the brightness on auto, and the same heavy use as the LG. I have actually gone to charging it at my desk at work during the day with a spare Qi charger I had for my phone. I love the way it looks and I actually like the way information is displayed on the round screen, but the battery has not been great for me. I do admit that I play with it constantly tho, so my usage may be quite a bit heavier than the average user.
None the less, I don't regret getting the 360, just wished it had better battery life is all.