I'm slowly working up to trying most rides at WDW. I experience pretty severe motion sickness, but with the use of Meclizine every day I can handle more than I can without. I still feel it though so I'm pretty cautious. Spinning things like the Tea Cups are still totally out. Star Tours I can't see myself managing as it seems too similar to the old Body Wars ride which was the absolute worst.
Any comparisons to other rides in the parks would be helpful too.
You sound SO MUCH like me. I always take meclizine when we are in the parks, every day, as I can't even ride the buses or parking lot trams without motion sickness. I also detest the "falling feeling" so not only are spinning things out of my realm, but also roller coasters. Here is my list of attractions:
>NEVER in this lifetime or the next: EE, RnRC, ToT, any of the Star Wars rides, Barnstormer, AstroOrbiter, Space Mountain, Teacups, Medievil Whirl, MS/orange.
>ONCE and done: Splash Mountain (actually about 6 times- finally ended up with major headaches from this, so I'm done), 7DMT (got really really sick right at the end, where the cars stop outside the Cottage- I was done for several hours after that), FoP (hunkered down and kept my eyes closed, the air blowing in my face helped- and I had a scope patch, meclizine, AND SeaBands at the time. Nope, never again).
>OK, but might not ride: Dumbo, Aladdin, Carousel, Toy Story (the swirling of the cars as they turn the corners makes me uneasy).
USUALLY ride, with caution: Soarin', Test Trak, Dinosaur, any of the Epcot movies that surround you as they play.
SURPRISES that I can tolerate and actually enjoy:
>>BTMRR is my favorite ride ANYWHERE, but I know better than to ride it 2 times in a row!!
>>On Friday, for the very first time, I rode Mission Space Green. It was fine, it wasn't as "tight" inside as I'd imagined. I had to focus/close my eyes briefly sometimes as I'd feel a bit uneasy (but this happens on Soarin, too). The ending was a little rough (I closed my eyes) and was glad when the landing happened, but I was totally shocked that I enjoyed this, didn't feel sick after (I did sit for a couple of minutes just to make sure), and I would ride it again.
I just did a mental walk-through of all 4 parks and I think that anything not listed here is OK, like Kali River Rapids, Navi, HM, Buzz Lightyear, etc. I have NOT been to the Toy Story section of the Studios since SDD and the swirling saucers/space aliens opened, so can't comment, but I think if the swirling saucers move more in a triangular motion (like a Scrambler- I can ride that easily) than spinning around, I'd try it. Not sure about SDD. However, I was definitely surprised by MS/green. I've never ridden that in 30(?) trips to Disney!