I'm more of a Ki-84 pilot myself, mostly because I like a little balance in the game, KI has the performance I like with a weakness people can try and take advantage of but I normaly won't let them, anywho, with a Ki I feel it'll outfly the 16 but only in either the vertical or VERY low speed with flaps as said above... The thing is, the spit 16 takes less to keep it turning, it doesn't need it's flaps like the Ki so you don't have to move about as much to keep flyin, but the spit doesn't have nice 1 cool to 3 runnning WEP the Ki has, very huge advantage!
Edward