I haven't rode F&F, but I'm a big defender of Fallon. It barely takes up any space, it's got an amazing queue experience, there's only one bearable pre-show to deal with, the ride system itself is extremely smooth and effective, and the film itself, while not the best, is still enjoyable and silly. I'd honestly rank it as the best pure simulator in the park. (Simpsons would be #1 as it by far has the best film, but the terrible queue and ride system for that ride bring it down heavily.) F&F has nearly no redeemable factors from what I've seen... but I'll decide once I ride it for real.