I liked Begins, but I don't think it was the greatest comic book movie ever, like some people do.
For one, it was a little slow in the beginning, bordering on glacial. I thought the Bat-suit should've been more streamlined.
I thought it was a little ironic that Bruce didn't want to take a life, but when he caused a fire that killed at least several people.
I didn't care for Begins take on the death of Bruce Wayne's parents. It just didn't flow right for me. Tim Burton got it better, even if Nolan's depiction fits more with the comic.
Rachel Dawes was a waste of space. Should've made her Rachel Caspian-daughter of the Reaper as a nod to Batman: Year Two, or Talia al Ghul.
Overall I liked the darker tone. But last summer I enjoyed Fantastic Four more. It whizzed alone, while Batman Begins moped a little.