I was at Universal Studios Orlando at the end of July. Hot as fuck there, but you're right about the Simpsons ride. I liked Islands of Adventure better. My favorite rides were the Hulk and Dueling Dragons coasters.
When I was there, they had a terrible track record with stuff breaking. The Disaster ride closed to being broken, the Cat in the Hat broke while I was on it (fortunately, they got it working again), lockers by the Dueling Dragons malfunctioned left and right for two days, mine included, and the Terminator movie didn't play the first time, so the actress playing the Cyberdyne rep was beside herself and didn't know what to do. She did talk to us and wing it a bit, so I give her credibility for staying in character.
You're right about the overpriced crap--I was able to get to the front of the lines without paying extra since my room key allowed me to. You'd have to pay to skip lines otherwise. And with the pass I got, it was only 100 bucks for both parks for a week. 95 bucks a day for one park? Fuck that.
A lot of the stuff is useless crap, but I did buy some Terminator stuff for my boyfriend since he likes that.