The 360S is the best looking console out of the current lot imo.
PlayStation's have never being good looking in my opinion, the PS2 fat and slim both pretty ugly. PS3 fat, was to fat, the slim looks pretty dull and the super slim is much the same.
The Xbox was to big and ugly.
The Wii was nothing more than DVD add-on, that's what it looked like to me, the Wii U isn't that much of an improvement.
Some say consoles should be made like hi-fi separates so they blend in to a home set-up, couldn't agree less, I think a games console should try to look exciting and futuristic.
Gaming PC do a good job of standing out, I think that's what a gaming machine (console or PC) should aim for.