WHM and SCH are fairly balanced in the healing department. The reason we pick WHM is two fold, first is they are the kings of AoE curing and everything in this game likes to spam AOE's, second is ST cures get cureskin which often saves people's lives when the NM is being evil. SCH has those massive Regens that make every WHM jealous, this makes SCH the kings of hate free healing / super cheap healing. It just happens to be that our fights these days cater more to WHM healing, though SCH does an amazing job in AA fights.