I've never really been a fan of Thor, as far as the comics go. I don't dislike the character in any way, I just don't really care.
I didn't like the trailer much at all. Sure, it looked pretty (except the Valhalla fly-over, and some of the Mjollnir effects). However, it pretty much failed as to the primary purpose of a trailer - painting in broad strokes what the movie is about. After watching the trailer, I still have no idea what the movie is about. There's this dude, he's Thor, and... what?
Needless to say, this did not get me excited about the movie. My state of mind is still, "hopefully it's awesome," and not, "that is going to be awesome!"