2 seaters - Robin 2160's. You'll never go back!!!! Better vis, more poke, much more responsive, more stable........ etc etc etc.
Decathlon and Antonov An2 for fun.
A sluggish PA28-161 if I really have to have more than 2 up.
Got hooked on JetRangers but can't afford it anymore.
Heli's are ok if you've got a big house.
Then you can fly from your back garden to the airfield to play upside-down in a REAL aircraft!!!