My three would be - The Dark Knight, Quantum of Solace and a tie between Iron Man and the Counterfeiter. Great standouts in a year that was otherwise only so-so.
I will be interested in seeing what happens at Oscar time. I think the wheels are being lubricated to make Benjamin Button be the movie of the year, but honestly, I thought it was good, but only good. After all the pseudo-mythic fairly tale posturing of the story, at the end there wasn't much there...a well crafted movie but nothing beyond that.