Hrm movies are a funny thing for me... I don't mind much if they are bad or good as long as it coincides with my expectations... Ok this apply more to bad movies than good movies really. I mean, if I go into a theater with knowledge that the movie I'm going to see borrows heavily from whatever breakthru movie came out and uses variatons from a technique that another good movie invented and countless movies copied afterwards and turned it into a really freaking annoying cliche, then I don't mind it being sucky or average, half the fun is making fun of the suckiness of it all... like that movie based on that arcade game that you shoot zombies (forgot name irl). I had to suck up that movie cause my friend needed to take care of his lil bro and lil bro wanted to see it, so nothing better to do than make fun of it... makes it 100 times more tolerable.
More recent example would be "Troy", I was expecting it to be some sort of Braveheart clone, something I could tolerate and perhaps enjoy. My friend on the other hand expected it to be a movie incarnation of "The Iliad", obviously he was very dissapointed (he wanted gods and a real epic like story). In short I enjoyed the movie and he thought it sucked donkey nuts (I'm not saying it's a really good movie, just enjoyable.)
Good thing about going into movies with sorta low expectations is that once in a while you see some low profile movie that you really really enjoy. What I hate most is hyping though... it seriously ruins my personal expectation system, best thing I can do is set my expectations a tad lower than what the hype leads you to believe. I still get dissapointed sometimes and because of all the BEST MOVIE EVAH hype it's hard to really appreciate when a movie is really good or it's just the hype making you think it's good
Ok on topic now
It's hard to choose one really. I like a lot of movies, old movies like "El Mariachi" are cool, "Fight Club" just ownzors, "Princess Mononoke" is a really sweet movie ( the tender and non dude-talk kind of sweet), Francis Ford Coppolas version of "Bram Stoker's Dracula" I enjoyed a lot because it has the best portrayal of Dracula I've ever seen, but the movie that seems to stand out for me is "The Princess Bride" cause it's funny, it has the awesomest characters evah, romance and really sweet (dude-talk sweet) fencing :D