wah, my list would be very long, but considering all-time favourite classics-type movie, i'd say...
1. Tron (just watched it on DVD again 2 nights ago)
2. All the Star Wars prequels and sequels (minus the cheesy spin-offs like The Ewoks movie)
3. Fight Club (love the Ikea scene)
4. Matrix (for obvious reasons)
5. Dead Poets Society
6. Dragonheart
7. Terminator 1 & 2 (3 is coming!!!)
8. Aliens 1 & 2 (3 & 4 sucked big time IMHO)
9. Moulin Rouge (only musical I liked enough to buy the original soundtrack)
10. All the Kevin "Silent Bob" Smith movies (Clerks, Chasing Amy, Mallrats, Dogma, Jay & Silent Bob Strikes Back, etc)
11. Texas Chainsaw Massacre 3
hahaha i was just kidding about the last one, but that could probably join the list of movies i'd not watch again even if free... along with Phantoms, Ernest Goes to Whereever, etc etc.