Used to fly a lovely if slippery little Mooney that I remember fondly, as well as a PA-23 Geronimo that was funky and underpowered but I still loved.
The 319/320/321 didn't really do it for me (as one pilot put it, "it's like kissing your sister"), but I thoroughly enjoyed flying the B747-200.
I was surprised to find that I enjoy flying the B747-400 even more
.
I will forever envy those who have had the privilege of flying the DC-3 and the B727 though
.