I have flown them both and I think the Diablo wins - especially since they lowered the price.

The Diablo has some available upgrades, but a lot of people have been having problems with them, but in its basic configuration, the Diablo is a great flier. It also comes with a 4-channel radio compared to the Super Cub's 3-channel radio.

If you're interested, here is a review of both:

http://www.rcuniverse.com/magazine/a...rticle_id=1004

http://www.rcuniverse.com/magazine/a...rticle_id=1003