The Wii one, hands down. When I look one post prior, attributes of particular noteworthiness would be "clean", "modern" and "grown up". Not "sophisticated" though.
It's focused on just identifying the system, and as the Wii branding is pretty strong, and clever (no abbreviations), I don't see a reason to want more. In that respect it's like the PS2 and PS3 brandings, but the Wii logo is much more elegant than either.
Besides having that certain co-marketing stench, the gfw logo is "loud", i.e. it uses too many different colors (a sin of which the PS2 logo is comparably guilty of, of course). It's like turning on the tv.
Just the top right corner alone, probably with a rounded corner, that would be nice.