I like flying any P51, but ABSOLUTLY HATE fighting in them.
Down low in scissors: any P40!!! Even the P38 is lovely in slow scissors. Both with compat flaps and the Me109. Trust me
Zoom climb tactics: F4F, F4U, P51, and again the P38 and Me 109, Spitfire
Turn Fights: Again the P38(to me it is a very good all round fighter. try a 400mph turn and open the airbrake, a few will turn with it!!!) Spitfire, Zero, all the biplanes
Me-163 is absolutely beautiful to fly, i also like the 109 a lot. Fw 190... only the D-9 works for me. I also like the Il-2 for low altitude: it is rediculously easy to handle. A6M Zero's are also nice. And F4U.