[Cloodie]

I only play Sit n Go's and cash games. In cash games having the big stack is pretty much irrelevent but in a sit n go, I try to bully the medium sized stacks as they are the ones who have the most to lose. Short stacks can be desperate and forced to call with a wide range of hands so it's a little more tricky with them. In saying that, close to the bubble I'd try to bully just about anyone.

Someone else will have to give you advice on tournaments but I'd imagine it's not too different from my sng advice.