Lands of the Mathy, I bring you: https://www.bg-wiki.com/bg/Talk:Afflatus_Solace
Data, tab delimited (Excel should pick it up if you copy and paste): http://pastebin.com/EUGLD00Z
Column1 is notes, Column 2 is the un-buffed damage for that monster, Column 3 is the HP cured, and Column 4 is the resulting buffed holy damage.

I'd like to make it piecewise linear like everything else in the game, but the numbers won't play along. Regardless, the take-home message is pretty clear.

Oh yeah, and Geneyus also helped me test THF AF3+2 head last night:
https://www.bg-wiki.com/bg/Raid._Bonnet_Plus_2