Originally Posted by
_slowpoke_
Haha, no. (D.)AST has no replacement for Assize (neither offensively nor defensively), nothing even remotely as powerful as Cure III, no instant aggro dump (though their general enmity issues have been addressed in 3.2), no real replacement for Benediction (ED is more of a replacement for Tetra), no freely placeable HoT bubble (CU doesn't even allow you to do anything while maintaining it), no knockback, no repeatable AoE stun, no AoE DoT, no E4E, and D.AB is weaker than Regen. Plus, AST has no Stoneskin II, and their multi-target heals have some minor range issues (Medica II has 25y range, both Helios and AH are 15y).
Unique things that AST has is their cards (which are heavily RNG based), Disable (WHM's Virus only works on physical attacks), Synastry (which, granted, is often almost too good), their two time manipulation abilities and the fact that CU also functions as a Sacred Soil if needed. Lightspeed serves somewhat similar purposes as PoM (minus the ability to use it as a DPS cooldown), both have Swiftcast and a way to apply Heavy. Also, AST's two DoTs can't miss.
Look, I like AST, I play it myself and basically consider it my secondary job, but in terms of raw overall utility, WHM still completely destroys AST and I'm pretty sure this won't change in the future. AST is an extremely cool job and an absolutely viable healer in general, but when compared to WHM in an endgame progression scenario, it's just way less consistent, because it lacks the safety nets and raw healing utility of a WHM.