I don't think it'll be Air that goes first. Air offers a unique experience (much like TTh said) with only one competitor (in the UK), being 'Hero' at Flamingo Land (which looks a lot less fun than Air). Whilst a lot of people on this forum don't seem to enjoy Air to it's full extent: I do, all my friends do, and it's a real crowd pleaser being a ride that everyone (if you're tall enough
) can enjoy. Air wasn't supposed to be scary. It was supposed to be exhilarating.
I really don't know which ride'll go first. They all offer a unique (and different) experience, you just can't compare them to each other.