What's the problem with Lord of the Rings? Every other person's mentioned that one, and it's actually three well-done films.
For me the big thing is that they are so freaking long. You almost have to set aside half a day to watch each one
IMO I think you are missing out on one of the single best performances in the modern acting era here. I do not like Chrisitan Bale as Batman though.
For me the big thing with this aside from the fact I don't care for this new adaption of Batman is that I like most of Heath's stuff (except Brokeback) and don't care to have my last image of him playing the Joker where he looks like he rose from the dead.