Easily Obama. Stupid term limits are ridding us of the only half-decent POTUS the U.S. has had since Truman, and quite likely the best POTUS I'll see in my lifetime.
If there is no progressive third party, abstain or stomach Paul due to civil liberties.
:/
Make no mistake, I'd easily vote for for Obama over some generic Republicans in a two-way race. But when an actual choice on the issue of perpetual war and the emerging police state, I would vote for those who declared opposition to both whatever their domestic policy views. While I don't believe Paul is sincere about theses issues, for now I'll take his word for it.