There is not really a certain plane type which i find specifically tough. It is the combinations that annoy me.
For instance, you look back and see a Hurricane/A6m and P-51/La7 chasing you down. Can't use energy on one and cant outturn the other 
Yup... I agree.
Although for this situation what I tend to do is wait for the pony/lghey to get close, cut throttle to ~50%, Pull up, and roll over em, gun the throttle with WEP and dive, repeat as needed until you get into friendly ackack or they turn away :]
But if you have to do it too much, change it up a bit, roll under 'em, that always catches 'em off gaurd

Then all you need to do is
