As far as ejector goes, Toro's airtime blew me away.. I had never experienced ejector that strong till I rode it. Skyrush is also excellent, and I305 has its moments, but that ride is really all about the positive G's. Then there are the rides like Fahrenheit and Maverick with the past-90 degree drops, which give some strong ejector as well.
For floatiness, nothing beats the first drop on Griffon. Just a perfect free-fall sensation to start off the ride.. I love it! Nitro and Apollo's Chariot are also quite enjoyably floaty.