I wouldn't say that Conan is a "Super Hero".
He's certainly a comic book character, so if we're using comics as the litmus, I would have to agree with most of you.
If we are saying actual "Super Hero", then I'm going to probably have to say The Avengers is the best "Super Hero" movie I've ever seen.
We are talking about a movie that had me, my 11 year old son, and my 6 year old daughter all completely enthralled with it from beginning to end.
It's very VERY difficult to make any movie that can do that to such varying age ranges.