Piston: Loved the Chippy, The Beech Baron was a pleasure to fly but the Navajo, when trimmed out, was very pleasant also, had a lot of fun in the BN2 Islander, Beech18, another pleasure to fly but a pig on one.
Turbo Prop: Only ever flew the SC7 Skyvan, (The original 'Shed'), fun but very slow and noisy.
Jet: Favourite all time aircraft has to be the B747-400, followed by B767-300ER then B757-200, B737-200 & -300.
the only wide body that wasn't underpowered
That would be pre B747-400 then?