I haven't looked at my PS4 since I hooked it up. I actually really dig the look of that system (it's angular, black visage reminds of the monolith from 2001, but in a good way) but I kind of don't care what these systems look like any more. I think when you're younger your fondness for a system (or more exactly it's games) gets tangled up with what the system looks like, the packaging, where you purchased it, the games that came with it.
Maybe it's just my experience, but as I've got older those things have became imperceptibly unimportant. Sure I'd take a good looking piece of technology over a an ugly one, but as long as it doesn't hurt the eye then I kind of don't care.
As for Wii U? I think it looks fine. Certainly better than Xbox One, but it does lack the character of, say, the Gamecube.