If it's a fixed wing aircraft, then I vote for the F-15E.
If it's a rotary wing aircraft, I'd like an Apache.
Then again, maybe they could do some older aircraft from either the Korean war or the Vietnam war. Back before they stuck all the super radar n weapons and you could get into a gun fight.
F 86 vs MiG 15?
F 4 vs MiG 21?
It could be fun.