Video and full article: http://www.eurogamer...-wii-u-face-off
A tldr from Reddit:
"A short summary for those not wishing to read the article or watch performance tests:
In terms of visual quality, the Wii U version is generally on par with the 360 version. In some areas visual quality is noticeably better (namely smoother shadows and the elimination of screen tearing, thank God) while not quite as good in others (bloom effects have been pared back a bit and in very rare occasions textures may appear somewhat garbled).
In terms of performance, the Wii U version runs almost exactly like the 360 version and runs miles better than the PS3 version. One noted advantage over the other two is that loading times are way faster on the Wii U version, even if the other two versions are installed onto the hard drive. The frame rate/stability is also comparable to the 360 version, though a 1:1 comparison is hard to make because both versions have variable frame rates. Some similar sequences actually suggest that it runs slightly better on Wii U overall, and the elimination of screen-tearing makes for a smoother visual experience as well.
The overall verdict is that the Wii U version is actually one of Platinum Games' fastest-performing console releases to date, and is also one of the best Wii U ports to date. Overall, the Wii U version is the definitive version of the original Bayonetta, and it coming packaged alongside Bayonetta 2 is one hell of a bonus."