I've only seen Stalker, and though it's not the most entertaining, a case could be made for it being the best film ever by some people (not me). And oddly enough, my fiancee bought me Solaris (criterion collection) a few years back but i never had the time to watch it. Then I sold off all my DVDs piece by piece for some cash (made like a grand in the process). now I gotta wait til it releases on blu ray. Stupid me.
Eternal Sunshine of the Spotless Mind 500 Days of Summer the Dark Knight The Departed Slumdog Millionaire He Got Game The Wood Forgetting Sarah Marshall Vanilla Sky Cruel Intentions American History X Rounders American Psycho Equilibrium Training Day Edit: Forgot Seven Pounds
My favorite is Fight Club. Acting, storyline, quotes, script. Practically everything is perfect for me. As this is a sports forum I really think you should watch Any Given Sunday, it's about NFL's team and how hard it really is to keep everyone happy as we're talking about management and players. Even though I've never seen a NFL game in my life, it was great.
Pan's Labyrinth was my favorite on your top 10 list. I still need to see Inception. I'll wait before I say it is better than Memento. The first one is clearly the best.
City of God Goodfellas Forrest Gump Good Will Hunting Saving Private Ryan The Departed Bourne Trilogy Clerks Swingers Wedding Crashers
"M" is good stuff, I watched that a few years back in Film Analysis. As for a list...I don't really have one, so I'll just list off some that I can think of right now. Silence of the Lambs Donnie Darko The Dark Knight Pulp Fiction Inglorious Basterds Inception Watchmen V For Vendetta Original Star Wars Trilogy Star Trek I know there's a whole shitload of movies that I can't think of, but this is what I currently can think of.