I found lots to do at Seaworld and am also in a power chair w/o the ability to transfer- they have nice shows ( although I don't agree with performing dolphins, etc.) and walk through attractions. We especially enjoyed the show with the rescued animals performing who seemed to love the attention and treats they got for doing their part in the show. As for Universal, there were some shows I could experience in my chair ( the special effects/make-up show comes to mind) and also a few attractions which were more like walk-throughs ( Twister) or in a theater where my chair was allowed (Jimmy Neutron). There was absolutely NOTHING I could do at Islands of Adventure. All in all, I don't think I'd go back. A dear friend of mine at work whose wife is plus sized ended up in tears there recently. I guess she couldn't fit under the bars of some of their attractions and wasn't told so until she got all the way through the queue line, then was embarrassed loudly by their employee. They'd gotten free passes as she's a local teacher but said even "free" would not make them return after the way they were treated there, not just on that attraction but even on those which she could ride.---Kathy