i would say the keyboard, i have never owned a good keyboard and when i get to try them i just melt away . Also as a gamer , a good keyboard is a must, and a mouse ofc.
I like the fact that it's still kinda stock android , i like the camera features and the front facing speakers. also the custom skin looks awesome, i think it's a great idea to do.
i definitely like the fact that lg still kept it kinda vanilla with its skin, also the fact that it has the volume rocker and the power button at the bottom.