Well... to be real aggressive it is more important to get new FP every 2 hours then to worry so much about order.
LoL!!!
Do the INDY fastpasses usually have a return time of less than two hours when you are getting them?
Andy, sorry but I would highly disagree with this statement. There is no way I would be getting Buzz FP before "the big 3" (Space, Indy, Splash). Buzz FP do not run out pretty much all day, but those 3 are usually gone by sometime in the afternoon/early evening. It's also much better to get FP for those 3 early because their lines grow faster than rides like Buzz or Big Thunder.
It also depends on when you visit. If you visit during a low crowd season, they may not even be running the Big Thunder or Buzz FP machines because they are unnecessary.
However, the Roger Rabbit trick is useful, but if you're going in the near future, Roger Rabbit will be closed anyway.
And to answer your question, it goes back to the second paragraph: it depends on when you visit. During busy times I have seen Indy FP return times of 4-5 hours in the future. I've also seen Indy FP return times between an hour and two hours. It's safe to say that if you get an Indy FP before noon, you probably won't have a return time of more than 2 hours in the future.
All that being said, here is the general consensus of the boards on what order to grab FPs:
1. Space (especially during Halloweentime)
2. Indy/Splash
3. Indy/Splash (Splash comes 2nd during warmer months, Indy comes 2nd when it's really not that warm)
4. HMH (when in season)
5. Big Thunder/Buzz
6. Autopia?? (FP here, you still have to wait quite a bit sometimes)
And then Roger Rabbit whenever.
At DCA:
(0.) World of Color
1. Soarin
2. Screamin
3. ToT/GRR
4. ToT/GRR (GRR 3rd or possibly 2nd during warmer months, like Splash)
5. Mulholland (which is closing soon anyway)