I think that at the moment priest healing spells need to be improued a bit (I'm not talking about CoH I also agree that it needs some kind of nerf).
Let me explain a bit with a list:
Greater heal (rank 7) ----> 712 mana cost, 2.5 sec of cast (with no haste rating) Can I know if anyone use this spell in raid? Personally I can use sometime in 5 man party, but almost never used it in raid since w th at least 5 or 6 other healers (in 25-men raid), and sucha long casting time, I risk to do only overhealing. It costs 712 mana (I have around 12k mana raid buffed) so it easy to see that u can't use it so much in a raid if u don't want go out of mana in one minute.
Flash heal (rank 9) ----> 423 mana cost, 1.5 sec of cast. This is in my opinion the best single target heal that priests have. Fast casting time and not so huge mana cost.
Binding heal (ran 1) ----> 707 mana cost, 1.5 sec of cast. Nice cast time BUT 707 mana cost makes it no viable in a long fight imo. Almost never used it in raid.
Heal (rank 4) ----> 801 mana cost, 2.5 sec of cast. Do I have to comment it? Have u ever used it in a raid?
Lesser heal (rank 3) ----> 801 mna cost, 2.5 sec of cast. XD XD XD XD
Renew ( rank 12) ----> 445 mana cost (less with mental agility). It is a very good hot. It is the healing spell that I use the most in raid with flash heal
Prayer of mending ----> 393 mana cost, instant BUT with 10 sec cd (7 sec with 5 points in Divine providence). Very good healing spell it is the third most used healing spell by in raids.
Holy nova (rank 7) ----> 655 mana cost, instant. Blizzard transforms it in a trainable spell bcause almost noone before the pacht spent the talent in the holt tree to get it. Yes it is vary nice, it looks cool, but 655 mana cos don't make me laught.
Prayer of Healing (rank 6)----> 1131 mana cost, 3 sec.of cast. Personally I used it only in one specific fight. In Najentus fight after the shield break to heal my party stop.
Circle of Healing (rank 5) ----> 550 mana cost, instant cast. Personally I think that now it is OP.
So imo yes it is true that priest have thebiggest arsenal of healing spells but how many of them can be usefull in a raid? Imo:
Prayer of mending
Circle of Healing (but they are going to nerf it)
So I agree that they nerf CoH but I hope also that Blizzard try to make all the rest of healing spells more viable and less useless for a raid. I mean at least:
-Prayer of Healing
have to be revisited a bit imo.
What do u think?
Sorry for my bad english :P