Just discovered this thread. My list is based on overall experience and not necessarily based on extreme thrills, which is why SFMM rides aren't on the main list, but are in the honorable mentions. Note: Haven't been on Twisted Colossus yet, but it looks like it could possibly make this list.
1. Indiana Jones Adventure - Groundbreaking ride tech for its time that's still a timeless classic. Some of the best visuals from a dark ride, especially going over the bridge.
2. Forbidden Journey - Needs no explanation.
3. Transformers - Great blend of practical sets, screens and use of 3D.
4. The Studio Tour - There's no other experience like it.
5. Radiator Springs Racer - Best blend of dark ride and outdoor thrills.
6. Big Thunder Mountain - It's like the best of both worlds from Calico Mine Ride and Timber Mountain Log Ride, but in a more thrilling coaster version.
7. Hyper Space Mountain - Best version of SM.
8. Silver Bullet - Really smooth coaster with a great balance of elements.
9. Incredicoaster - Surprising, a really good overlay.
10. GhostRider - After its major overhaul, it's now an incredibly smooth woodie that provides great thrills.
Honorable mentions: Tatsu, X2, Lex Luthor: Drop of Doom (Only for my experience where we were stuck about 2/3 of the way up for about 20 minutes. No communication from ops saying how long it will take to fix. Then without warning, brakes released and we were grounded. Craziest f'n experience to be dangling roughly 250+ feet in the air for 20 minutes with no explanation.)