well hhmmm this requires situational awarness:
what are you in, what is your enemy in, distance and closer rate.
but if your talking bout fairly evenly matched planes and he is right on your arse my favorit is to bank one way or the othere (don't matter whitch) then i start to go oposite and as i do i throw myself into a short stall and pull out quickly then use full wep and depending on my plane a few notches of flaps and kill the bastard following me as he misses and flies by.
Don't always work that way but they almost always miss with the first pass when you throw yerself into a short stall and then they have to work to get behind you again which gives ya a fighting chance. Especially when you get jumped while shooting his friend down
but hey we all got our own styles so find what works best for ya and make it a religion. your victories will go up from there.
White Tiger