if you PLAY both classes, you will see theres no way SCH be on par with WHM in a PUGed demon wall, on both paper and reality. And WHM outdpses SCH simply for the fact it has more mnd to swap to int when needed. SCH has way more abilities inherited from ACN but they aint all that useful (no real AoE for example).

When I want to quest, I flip a switch a do it as SMN.