So I'm playing my alt priest as holy and am a bit confused why people seem to hate on renew so much.
My POH heals 5 people for 9.5k each while my renew heals one for 19k including glyphs / talents for them both.
POH has a 2.09 sec cast which means I can get 3 renew off in the same period.
POH will heal for 47.5k best case, renew will heal for 57k.
renew allows me to move while casting, and allows me to heal people from different groups, but costs more mana.
So in heavy damage phases why would I use prayer over renew?