In my opinion, it's not the graphics that matter in the game: It's the gameplay itself.
But personally, I like 2D games when they have a better plot. I don't mind platforming games that have 2D.
3D games are cool, too, but if the gameplay and the plot in the game sucks, I'm much better off with a 2D game. Some people are so stuck on graphics, but to me, it's the game's plot and the fun meter. If it's fun, the dimensions don't matter.