Nah, I'll take formulas! Bet Al wants them, too.
If I'm the stronger team all around, I've been using the condition first, attack bonus later as needed approach.
If I am against a tough team, I'll use possession bonus to make sure I'm not out of possession too much. That's first priority in correcting the balance if I don't have 60% possession or so.
I have played a lot with only attacking bonus start to finish and wonder from other managers who play attack or condition+attack : Do you notice less skill points gained after games using condition bonus? as compared to using attacking throughout.