Alright, lemme try
Polecav>Xbow>Shielder>2h>Polearm>Horseslasher>Archer>Thrower>Horse Archer>Horse crossbowman.
Anyway I think its pretty close. This order is chosen based on how I see the average cRPG player and my estimates of difficulty he would have to get a good k/d witht hese classes.