You forgot:joey4420 wrote:Tricycle, tailwheel; high wing, low wing; auto or stick..
Yoke, stick; steerable nosewheel, castering nosewheel; flaps, flapperons; wet wing, fuel tank; toe brakes, heel brakes; VOR, GPS; avgas, mogas; tube and fabric, metal, wood, composite; pusher, tractor; tandem, side by side... so many decisions!