Guess I'd say all the same ones as everyone else. Splash is really neat, but not when it's sleeting like it was on our last trip (Jan 05)! My son didn't like TOT in the dark - he was fine on it during the day, but it freaked him out at night (granted he was 3 at the time, but still!) Personally, I didn't think it was as much fun because I think one of the neat parts of TOT is looking around the park before you fall, and I think in the dark by the time you got your eyes focused, you were falling.
I agree that Big Thunder is cool in the dark - we probably won't even try it in the daytime on our upcoming trip since my kids are older now and would probably find it boring then, but might enjoy it in the dark. Same for Jungle Cruise - I didn't even know it was ever open in the dark until reading these boards recently. That sounds like a lot of fun. Is Everest ever open late enough that it runs in the dark? Thought AK usually closed before dark, even with the EMH's.