I have a friend who is lv. 50 WHM and lv. 50 SCH and he said the same thing, he prefered to stay with WHM because he plays better with massive healing rather than buffing the party to receive less damage. I am having the opposite experience, I much rather play as SCH than trying to level up my Conjurer to get WHM so far. That and I really like the fairies, aside from their AI that really needs some upgrade so we don't need to control them all the time in certain battles =/