I don't think you could go wrong with any of those. Of the three, the Stinger is going to be the most like a true aerobatics plane and also is made to be flown fast. To that end, I think your prop choice isn't going to be the best because a 13x6 with a 4 stroke is going to be pretty slow. If you're looking for stump pulling torque and unlimited vertical that's the way to go, but if not I'd go down to an 11x9 or 11x8 to give you a little more top end speed.