This goes out to anyone that has another healing class, and can make a good comparison like I did. I'd be interested to know if you think we are underpowered, or if the class I tested is over-powered.
I healed Azjul Narub as a Balance druid and as a Shadow priest at around level 75 each. My druid has less spell power and has only low end raid gear, while my priest had full Tier 4 and more spell power and haste.
As a druid, I kept up very nicely, and there were no casualties or complaints. As a priest, everything was an effort, and people were dying, and I kept running out of mana. I stick with Flash/Greater Heal, Renew and Prayer of Healing as a rotation. Then, the druid rotation is pretty much stacking all my HOT and burst healing when needed, which is more spells than I would use as a priest.
My concern is that priest healing is either underpowered, or druids are over powered, as this situation strongly implies one or the other or both. Everyone in each group was a relative level to the instance, but I did not check gear, so I am sure it was not just a matter of the others being overpowered for the instance.
If any class in the game should be exceptional healers, it should be priests. I notice that druid burst healing is also better as far as HPS and mana efficiency. My suggestion would be to reduce the mana cost of priest healing, and I saw some mention of that from Ghostcrawler already.
Edited, Jan 16th 2009 4:11pm by sederix