RE: Which One?
I'll 2nd the Midwest Aerobat. It sounds like your in the perfect position for either of the 2 planes mentioned so far. The Midwest Aerobat lands slow, but is VERY responsive in the air compared to a typical trainer. It can do quite a bit of aerobatics, it's labeled as an aerobatic trainer. Minnflyer did a review on it last year when it was new. Look it up on these forums.
As far as price goes, I think the Avistar is around $100 and the Aerobat is $150. I can't tell you which one flies better because I've never flown an Avistar. They sound like real similar planes, both are a good buy and both fly well.
Joe