I'm curious to see what people (Priests, the rest of you I can't comment on very well) use. I think ZHC has fallen from grace (I don't see many people with other options using it), and pretty much everyone I see uses Rejuvenating Gem. However I'm noticing two (sometimes three) camps: The ones that use Shard of the Scale and the others that use the Royal Seal from DM. I do see the occasional person using a ZHC or Hibernation Crystal(<3), though I think the ZHC is due, like I said before, to a lack of options.

Shamans have Natural Alignment Crystal which seems pretty sick, so I dunno, do you guys use that a lot? How about Paladins? I'm always interested in knowing what the enemy's gear is like (Mind Control /inspect ftw) :)

As a druid I usually use ZHC or Royal Seal on trash pulls with Rejuv Gem and Rejuv Gem and Mindtap Talisman for boss fights. I wish I had a Shard of the Scale but Onyxia has only dropped one for my guild in over a year of farming her.

As a rule of thumb I usually stick with max +heal for trash since the pulls don't typically last long enough for me to need much if any regen and swap in some regen gear for boss fights.

If I had the option I'd use shard of the scale and rejuv gem.

I'm hoping they didn't remove warmth of forgiveness, but it hasn't dropped yet from trash so.. =(

I use Hibernation Crystal and Shard of the Scale...wouldn't mind a Rejuv Gem to replace the Crystal for endurance fights.

Edit: Scrolls of Blinding Light (our corresponding trinket to Natural Alignment Crystal) is godly on <30% Huhuran, but fairly worthless anywhere else.

As a shaman, Rejuvenating Gem and Shard of the Scale. You can't get better, in my opinion. Thank christ I got them when I did, we haven't seen either of them drop in 2+ months.

Natural Alignment Crystal, at least from a PvE perspective, suffers from the same problems as the ZHC: burst healing in the amounts that these trinkets provide is very very seldom needed; there's also the added "bonus" on NAC making ALL your spells costs 20% more mana, which means unless you want to pay out the ass, that's 20 seconds where you can't redrop any totems. I suppose if you have something with a TON of splash damage (ie: Huhuran) it might not be a bad idea to use them on Chain Heal, but I'm always of the mindset that consistency is better, and mana/5 and flat +healing provide you with this. My NAC hasn't left my bank in quite a while, and my ZHC is really only equipped occasionally, mostly for damage purposes in PvP.

I need to start carrying around a few older big +healing items (like Lei of the Lifegiver instead of Malistar's) and use them on trash. Depends on the trash, though. Fucking lab packs... I'll take a lot of regen every time, those goddamned things go on forever.

ToEP/ZHC is nice when you're spamming rank 5 HW, but generally the passive trinkets are better because you usually can't predict when you need an "osht" heal and don't have a GCD to waste popping a trinket. If I could ever gotten the damn thing to drop I would match a Mindtap with my ToEP, and replace the ToEP with a Rejuvenating Gem, but I'm stuck with the DM trinket.

The NAC is a specific trinket, there are a few fights where it's great (Vael, Huhu) when you need to go flat-out and efficiency is thrown out the window similar to usage of the MQG. Otherwise, it's not very useful to spend 20% more mana even for 20% more effect as a class that already has severe mana regeneration issues.

Ugh, Warmth was never a trash drop. Ever. That wowwalkthrough site just had a "misc/trash" category for drops that it hadn't classified yet. We almost certainly will see it as one of the Horsemen drops when they finally go down.

We've got no in-combat spirit-based regen just like shaman, so our best pre-naxx combo is shard/gem. Naxx opens some other options, with the 10 mana/5 seconds + on use trinket, and the eye of dimunition.

I don't think paladins benefit from the big-heal trinkets since we can't use it to spam insta-cast regen, or anything really, just a handful of high-HP heals for a couple of seconds. But, yeah, Scrolls of blinding light are awesome for burst healing where you're willing to burn through a 6k mana bar in 20 seconds (660 mana/1.875 seconds, 11 casts in 20 seconds, 7260 mana * .8 [my spell crit is around 20%] = 5805 mana).

I know the eye of dimunition is one we shouldn't look at taking since it's the threat on-use that makes it neat, but it is a very tempting item, since paladins can't get the Eye of the Beast. Eye of Dimunition is the only paladin trinket that scales with new ranks of spells and so on. Spell-crit mechanics for paladins are somewhat unique because of illumination. It works out to something like 12 mana/5 or better, depending on healing behavior and around 30 healing. But, with new ranks of HL and FoL in the expansion, the Eye of Dimunition will start to beat out the Shard for mana regen and get close to the rejuvenating gem for healing.

As a druid I use rejuvenation gem along with Wushoolay's Charm of Nature (http://www.thottbot.com/?i=51985) . Priests have a similar ZG trinket. Maybe it's not the most mana-efficient trinket out there, but it's good for those moments when the raid takes lots of damage and I can start spamming some low-rank HTs with reduced casting time. Plus I really like the animation (it's like a green whirlwind), so it kind of keeps me better awake during raids ;) Before that one I used to wear ZHC, but it almost seemed to go to waste...plus I constantly forgot to use it. Which admittably happens with the Wushoolay's Charm of Nature as well, I suppose it's a common issue with healers and active trinkets since we need to be so focused in many things simultaneously.

As a shaman, I haven't been able to get my hands on either a Shard of the Scale, or a Rejuvenating Gem, so I'm left with secondary options. The Natural Alignnment Crystal is crap for pve. The increased mana cost is very harsh, so I have left mine in the bank for months. Pretty much the only use I see for it is in pvp as an elemental shaman. I find myself still using a Mindtap Talisman and ZHC most of the time while raiding.

A while ago, I was finding myself pretty dissatisfied with ZHC, because I found myself naturally wanted to use the trinket at the right moment. This meant I used it very rarely, and usually when things were already going badly. Overall it's a pretty strong trinket, but because it's not a passive benefit, it gets underutilized a lot. After 1.11 when I respec'd 3/3 Healing Way, I decided to fix things by writing a macro that automatically uses the trinket on cooldown in conjunction with Healing Wave Rank 6. Now I use the trinket pretty much every time it's up, so I feel like I'm getting good value from it all the time. In some fights like Razuvious where I'm healing the Understudies, I'm seeing the trinket proc 3 times over the duration of the fight without me having to monitor the cooldown at all.

The macro is very simple:

/script UseInventoryItem(13)
/cast Healing Wave(Rank 6)