Doctor Strange - definitely one of the better Marvel movies I have seen. I honestly think is was better for having marginal involvement by any of the usual suspects from those films. I know some executive somewhere is currently rubbing his sweaty palms together at the thought of DS teaming up with the Avengers though, which is a shame. The more bloated the films get, the worse they tend to be.
The thing I was probably the most disappointed by was the antagonist, who seemed kind of weak for a guy that is supposedly the master of the dark universe (which itself just seems like a bunch of weird interconnected balls)