Always more aileron.
The others are much more model-dependent---on wing size and shape especially,and on weight, and flight sp
eed on snap entry.

A good test for how much elevator is a power-off vertical down single snap(pos. or neg) on the centre line---watch for how much the nose is offline at the end of one rotation--in a positive snap this will be with the nose pitched up if there's too much elevator. And vice-versa in a negative snap.
Entry speed comes into this as well---check the effect at different points on the downline(and thus different entry speeds).

Play with different rudder throws to minimise how much yaw shows up at the completion of one rotation---this is very model-dependant---some will need more, some less----and in multiple snaps with part-complete numbers(like the 1 1/2 snap in PO7) there will always be some bodily sideways jump---so practice these so that you snap in the direction that makes it harder for the judges to detect!