As a devout Batman fan all my life I was slowly swayed into seeing Batman Begins the second week it came out. After the film I was mildly impressed and after watching it a few more times I finally gave in and agreed that it was a good film and was fairly accurate and true to the vision of Frank Miller.
The Dark Knight, however, will knock your pants off and stick chewing gum in your hair in the first 3 minutes. This film is hands down the best 'super hero' film ever made and will eclipse all others accordingly. Bale and Ledger are a brilliant duo who capture, completely, so much of what we all love about the most recognizable hero/villain combo ever.
See this movie NOW! Don't wait because you'll not be able to avoid hearing people talk about it everywhere soon.