Thanks GREENLION, I didn't think anyone was going to reply. What's happened to the forum lately?
As stated, I really like the AT-1. It has a little more character than the Air Zone, which, I agree, can seem a little bland. I think the At-1 has more tops. I split my bridge PUP a lot, as I play some country stuff, so that's important to me. Both split well, but the AZ is a definite winner there.
Which one I prefer really comes down to the neck PUP I'm pairing it with, and I've just changed from a SD "Hot For Tele", to Dimarzio Pro Track. Tons more bottom end, and the AT-1 sounds thin in comparison.
Back to Air Zone. Geez I'm glad I didn't sell it!