We went last week for the first time. My Dds were able to go on all the rides as they are tall but there are alot of rides that are suitable for shorter DCs. We had a great time, although a theme park is not my idea of fun, I enjoyed seeing the Dds have a ball. They loved the river rapids, toadstool swing seats, air, nemosis, log flume and the pirate ship. DD2 is 9 and went on everything even 13!
It was not as busy as I expected though, queue times were about 15/20 mins except for rita and 13, they were about 30 mins.
We have been to Florida quite a few times and I was not as disapointed as I expected to be by Alton Towers. It was very clean and well run. Downside was lack of attention to detail on attractions but I think perhaps America just do it so well! Also there were alot of loud, tatooed, sweary types (sorry to offend) was amazed at some of the language we heard in the queues. We saw a man asked to leave Disney for swearing in a queue!