I haven't done GotG, but didn't do ToT because it didn't interest me (drop rides don't usually). In fact, only our DD10 wanted to do ToT, no one else did. Now that it's GotG, all of us want to try it, so the theming has definitely made a difference for us and we haven't even ridden it yet!
That being said, of the rides we HAVE done in DCA, here are my (so far) top 5:
Racers. 'Nuff said!
Soarin'. I didn't do California, just the new one, but it was awesome nonetheless.
Mater. Makes me laugh so hard each time.
TSMM. Love how there's games within the game. And the theming at the end is so sweet.
GRR should be on my list for sure. I think I had Monsters Inc in the other thread. Both of them I love though... so it'll have to be a tie.