In no particular order....
F4U Corsair
F6F Hellcat
P36 Hawk
P61 Black Widow
P38 Lightning
JU87 Stuka
BF109
B24 Liberator
B25 Mitchell
Spitfire
Mosquito
etc etc ...just to start off the list...
I prefer razorback to bubble canopy (P51A to P51D, same goes for the P47)
Basically anything from WW2 with a propeller
And now after seeing one hanging from a ceiling in a gift shop, I've grown quite intrigued by the Piper Apache (I feel plans may happen...)