SCH vs AST?

[RichardButte]

Astro can handle all current content fine

Addendum: AST can heal all current content just fine if the group is competent and avoids avoidable damage.

If multiple players in your group are getting hit by AoEs, AST completely falls apart whereas the other healers have the emergency buttons to save a situation like this from becoming a wipe.

Also, AST's card buffs simply aren't worth the tradeoff of lacking the solid emergency options that the other healers have.