Batman Begins did it for me in terms of that I love the character they built up. The scarecrow doctor guy was an awesome character. Liam Neeson was kickass with his voice over monologues on his training. I was never bored as I thought all that backstory was really cool and will lead to more Batman movies as well. I liked the way it showed him going a little crazy with his money and just being an arrogant person the way you'd expect him to be and not some sulky drawn out 'emo' fashioned person. I could be biased for liking it that much...
-If you don't know, then don't ask...