Pros and Cons of each Healer Role

[Yhisa]

AST
Pros:
Highest potential for total party contibution
Very accessible insta heals
Better AoE healing than SCH.
Best mobility

Cons:
Unreliable cards; therefore, unreliable contibutions
Gravity is level 60

Erm what? Have u played AST?

Ast got the best HoT in the game no other healer can get 4-5k HoT on a none tank... If tank ur looking at a 6-7k hot instead, AST is also the strongest healer for AoE healing due to its kit it stomps WHM hard

Also AST can dish out insane AoE damage if done correctly

All i can say is "USE UR KIT" if u dont use ur kit stop playing ast xD

[Lyrica_Ashtine]

Erm what? Have u played AST?

Ast got the best HoT in the game no other healer can get 4-5k HoT on a none tank... If tank ur looking at a 6-7k hot instead, AST is also the strongest healer for AoE healing due to its kit it stomps WHM hard

Also AST can dish out insane AoE damage if done correctly

All i can say is "USE UR KIT" if u dont use ur kit stop playing ast xD

"Best HoT in the game" requires a lot of set up time and it isn't always available. At best you can have 180 potency healing under normal circumstances, an extra 150 with Collective Unconsciousness, which has a 90s CD and an extra 20% on Aspected Benefic and/or -Helios through Synastry with an identical CD. Set up time requires 5.5s recast/casting time and an additional "idle time" up to 3 seconds. HoT totals up to 366 potency at the cost of 2 abilities and maybe a third or fourth, depending whether you use Time Dilation and/or Celestial Opposition. The healing effect difference on tanks only applies when healing modifiers are applied and do not create an additional 50% potency worth.

As for the AoE healing, how does it "stomp white mage hard"? In raw strength, the spell potencies are pretty similar. Divine Seal adds 10% more potency than Synastry and not to mention having access to Assize and Cure III (If the group happens to be stacked for that). If you were referring to Light Speed, Light Speed doesn't actually increase the healing output. Helios recast time is still 2,5s with or without Light Speed. Presence of Mind, however, does reduce the recast time.

Holy has the same potency as Gravity. Astrologians do not have access to Aero III and assize, however.

Now, I'm not saying that Astrologian is inferior to White Mage. But the way you are describing Astrologian is simply misleading.