Best Opening Sequence - Raiders, without a doubt
Best Sidekick - Sallah, Raiders - Henry was good, but I find Sallah much funnier
Best Villain - Belloq, Raiders - Good looks, intelligence, class, all things you don't expect from a villain.
Best Leading Lady - Marion, Raiders - best match for Indy, although I think Willie was the prettiest, and the one I most identify with.
Best Artifact - Ark, Raiders - it's just the best.
Best Phobia-Scene - Snakes, Raiders - I'm terrified of snakes, so this scene scares the crap out of me. I don't know what I would do if I were in their shoes.
Best Fist Fight - German Mechanic, Raiders - funniest and most memorable.
Best Action Set Piece - The opening of Raiders again.
Best Escape - I actually like Indy and Willie's escape from Club Obi Wan.
Best Booby Trap Scene - Spikes from Temple of Doom
Best Finale - Opening the Ark, Raiders