Well i like default silver. It is so sleek but I can't get used to the analogs, then use different ones =/ ... so prob not that. I don't like default black, too boring. Serpent is a great option, same with halo reach + fable. Fable is just boring black on the back so i dunno. Red skulls prob is the best actually but idk... lol
I like the look of the red skulls the best, but havent felt the texture on them. I know that on my xcm shell it felt terrible(piano black) It always had my hands sliding off, but it looked amazing.