It's beyond me how someone can contribute starting with "/thread" (implying he/she knows it all) and then proceed to answer questions that are totally uncalled for and write a summary that is completely missing the point (because obviously everyone wants/have max mind and piety, it's the other stats we are discussing here - you would know that if you bothered to read at least 1 of those 3 pages).

Also, your summary is just plain wrong. On top of it, your answers are also wrong. You can for example increase raid/group healing with Sch through determination (Titan stomps for example), while spell speed won't do much for you here.