well 5.2 inch screen is too big for me, i dont want the entire world reading my text messages along with me. but customization and performance wise its going to be really good, I'd give the customization edge to LG but peformance wise, not sure because G2 isnt out yet but im almost certain it'll be a good experience, and everybody has nothing but great compliments about the HTC's smooth UI and fast software (including me, have yet to notice a single stutter or lag)
hardware wise I think the g2 is nicer with the thin bezzels and the touch buttons IN the screen.
feature wise the One's front speakers and screen are amazing; its like a mini surround sound system. its great if your a video or movies guy like I am.