Yeah that shot is incredible, but it's just due to the angle showing all their different muscle definition that it looks so impressive. I was just as impressed with the series of Melo screens and still think Live looks nicer. The faces in 2K10 are scary accurate though (Rose, Fisher, Artest are absolutely perfect), but we really haven't seen all that much from Live on that front. especially since many of them are making facial expressions that make their faces look different.
But yeah, graphics are definitely a personal preference thing. I like the very clean lines and high quality textures that Live has.