Check out this early comparison between the LG G2 and the HTC One. The LG G2 has a 5.2 inch display compared to the 4.7 inch display on the HTC One. The 4MP UltraPixel camera on the HTC One goes up against a 13 MP on the LG G2 with both sensors featuring optical image stabilization. The most unique feature on the G2 is the location of its physical button in its rear.
source - PhoneArena