I will not.
I think money, because with enough money you can do anything you want like Shorty said.
I might also wish for a superpower or something.
Those saying money make me think their wishes would go along something like this,
Wish 1: Max Money
Wish 2: Infinite Money
Wish 3: Batman Gadgets
Wish 1: I would wish for Superman's powers (without any weaknesses) because let's face it... his are the best.
Wish 2: I would obviously also wish for unlimited money. That way I will finally be able to open my research facility which will focus on the cross-breeding of donkeys and gorillas in order to create Donkey Kong.
Wish 3: Finally, I would wish for the non-existence of Justin Bieber
Monies monies and moar monies!