From the four new movies on the list, I would have easily picked Brazil, a favorite of mine since I watched it as a teen. Amadeus is a good movie, but not a great movie IMO. Like stePH, I feel Fargo is a lesser Cohen Brothers creation (though I know many disagree, and unlike stePH I think Big Lebowski is utter brilliance). I haven't seen Tron, but I don't get the feeling that seeing it would likely change my mind.
And in any case, all these opinions are moot since Princess Bride is still on the list. Brazil may have come closest yet to a real challenge for it in my mind, but it's still lagging by a wide margin.