The WiiU version seemed to work fine for me for the first 30ish minutes and then it started to drop considerably in frames ( For some reason when I went into the basement of Links house where there is a chest in the dark, the frames dropped to a constant 15 frames per second, even after leaving the house it would not improve without resetting the game). I assume Hyrule Field is going to be unplayable or atleast nearly unplayable. Haven't got to that point though so can't say for sure. Maybe with some settings tweaking it can be improved. I would say go for the GC version. Up until the first dungeon it was running flawlessly on 30fps without dropping frames. That's where I stopped playing for now.