I would without doubt go for Rooney. There is something about Rooney that i haven't seen before in any striker or attacking footballer. There is so many positive things that you can say about Rooney.
Torres is the same but lacks Rooney's determination and work rate. A partnership together would be a force to be reckoned with and in my opinion would be the best partnership the football world would of seen since the Andy Cole and Dwight York days.