I'm the biggest ride chicken there is. Having said that I rode everything at Universal (did the stationary seats in Jimmy Neutron - simulator ride) and in IOA I only skipped Hulk, Dr. Doom's Fearfall, Dueling Dragons and the spinning things next to Hulk - I can't remember the name of the ride, but its like the teacups. I also closed my eyes on the "down" part of Spiderman (another simulator ride). IMO Spiderman and The Mummy are the two best rides in Orlando. The shows were great and I loved the theming of the parks. We had a great time there and will definitely go back.
On another note, if riding rides makes you nauseaus (sp) try taking some kind of seasick medication. I like Bonine as its one pill every 24 hours. I take it at night before I go to bed and I'm fine on all the rides the next day. Dramamine works well too, but makes me really sleepy.