The hot topic of the discussion was what buttons a druid presses to heal in current content, which largely consists of Rejuvenation and Wild Growth, and how Blizzard wants to change this for Cataclysm. Apparently there was the notion that only baddie druids would stick to those two spells.
The difference between good and bad healers is really obvious right now. A resto druid who does nothing but casually Rejuv the entire raid is a bad healer on the vast majority of fights (i.e. non-damage aura fights).
Ghostcrawler begs to differ, saying that druids pushing the toughest hard mode content are still rolling majority Rejuvs + Wild Growth and performing adequately, which sounds appropriate for me given what I've read on the matter.
But then the comment that really got me was this:
Nah c'mon. You can at best be a mediocre druid if all you use is rejuv and WG, and it is unlikely that any such druid would find success doing 10 man hards.
As I said, I don't consider myself an expert on druid healing, but I have healed 10-man hard modes, and the vast majority of my healing comes from Rejuv, followed by Wild Growth, with a sprinkling of Lifebloom, Swiftmend, and the occasional Nourish thrown in depending on the situation.
Personally I feel like a baddie no matter the content I heal, just because I don't feel very comfortable as a tree. It's probably the HoT thing. Back in vanilla and TBC I was very happy being able to choose the right heal for the job and managing my mana pool. But when I can't be sure of whether my HoTs will fully tick out I feel like I'm just blowing heals for no reason. If I had to ration my mana pool in WotLK I'd probably be a nervous wreck of a tree.
But if the content I heal is any measure, I'm pulling my weight and doing just fine, relying primarily on Rejuv and Wild Growth. I can find uses for my other spells, but they're limited. For instance:
Regrowth - If I want to pre-HoT a tank before we start I'll toss this on because it lasts a long time while the tanks get into position. I'll also Regrowth Valithria before taking a portal.
Lifebloom - I throw this on the tanks for extra healing depending on the fight or phase of the fight as extra padding. Whether or not I roll it or even stack it depends on circumstances. Usually it just goes up when I have a free GCD and there's little need to HoT someone else, but if that tank's going to take a lot of damage in the near future I try to keep it stacked and rolled.
Swiftmend - While I like this while running 5-mans, I've found it surprisingly underused in a raid environment. I still use it, but many times I find I can count on my fellow healers to get to the severely wounded first. Unless I'm positive I saved a dps with this, its healing feels superfluous.
Healing Touch - Only in emergency in combination with Nature's Swiftness. Does anyone even use it otherwise? A shame since it used to be the old standby for a leveling druid.
So, yeah, I use my other spells. Would my healing be horribly crippled if I didn't? Not really. Not in a raid. And not unless something happened to our holy paladin and he wasn't there for the night and the disc priest or resto shaman got ice-blocked, prematurely faceplanted, or some other horrible thing.
When that happens I toss on the HoTs and Nourish spam the tank, but 90% of the time a resto druid is fine with just Rejuv and Wild Growth.
Honestly, I think it'll be fun to use more spells again. I feel silly casting HoTs all the time whether the raid really needs it or not. I'm sure I overheal like a maniac and it's considered a good practice, because if I don't, someone might die. They might not, but I can't take the chance.
Paladins often get shafted as the two button healer, but I actually feel much more dynamic in my decision-making and actually press far more buttons healing ICC on my paladin than I do on my druid. On a typical raid fight as a tree I will Rejuv, WG, and possibly two other spells (maybe Innervate or a couple other heal abilities). On a typical raid fight as a paladin I will Beacon of Light, Sacred Shield, Holy Light, Flash of Light, Divine Plea, Avenging Wrath, and Judgement of Wisdom, guaranteed. And then maybe Holy Shock and Divine Illumination if needed.
Maybe my paladin won't be constantly juggling all those spells, but they are cast at some point in the fight. Whereas the druid does almost the same thing the entire time.
I'll try to get some Cata moonkin comments in sometime. Seems harder for me to get a coherent post going on that one instead of just dropping one off the cuff.