In terms of graphics, the Wii U will be the PS2 of next gen. Able to compete, but clearly not the best. As far as how it's ports will compare to their PS3/360 versions, Wii U probably wont have as much slowdown, texture pop-ins, screen-tearing, jaggies, or inconsistent framerates. It'll also render games in 720p, not 600p like in COD games.