I'm still really enjoying Whm as my main healer at lvl70. i find i don't miss stoneskin much as divine bension is much more useable in combat. i do think that some changes are needed though. the lilies need to have more of an effect, because as it stands they're weaker than a spear. maybe giving them the same cooldown reduction numbers as pvp would be too strong but somewhere inbetween should be find.
The other two things that need changing are the lvl68 trait and plenary indulgence. personally i'd change the trait so that it gave the aoe heals or regens a 20% chance to proc a lily. Plenary as it stands is a complete let down and I'd personally change it completely. maybe to a skill that needs three lilies that acts as reraise like skill that bypasses resurrection weakness
