Mandatory

Major
Glyph of Divine Plea Looks "Meh" - 3% mitigation while DP is up? Except it synergises with GbtL, which means it is up 100% of the time vs a boss, and most of the time vs trash as well. And yes, it does stack with BoSanc, etc. Grats, our first "mandatory" glyph.

Almost Mandatory

Glyph of Seal of Vengeance 10 expertise skill (!!) is a lot more hits connecting for a tank with a minor mitigation component due the reduction in parries. This Glyph is grossly over-budgeted - a normal major glyph is maybe 1 talent point. This one is more like 5. Anyway, it's our best TPS glyph by a large margin, while simultaneously providing a tiny bit of mitigation via reduction of parry-haste.

Recommended:

Major Pick one, doesn't matter which, all three are OK. For Ulduar hard-modes, taunt glyph is probably best.

Glyph of Righteous Defence This was awesome until we all switched to using a real, single-target taunt. 3.1? Meh. 3.2 - works with our single-target taunt. Thus, back to Never miss with a taunt.
• Never have the Holy Priest get his face ripped off because your taunt resisted.
• Never wipe because you stuffed up a tank swap.

Glyph of Hammer of the Righteous Four-target cleave. Nice for trash.

Glyph of Judgement Increases your damage & threat for no downside.

Minor

Glyph of lay on hands Hey, 5 mins off the CD is nice.

Situational:

Major

Glyph of Salvation 20% off damage taken, 10 sec duration, 2 min CD. Powerful CD with a serious downside. If the situation suits it, this could be a rather OP glyph. EG: Tanking Steelbreaker as last to kill. You have huge time to build a threat lead, then have a goddamn mountain fall on you and probably need to chain CDs, same as Sarth+3. Thus: Situational

Glyph of Avenger's Shield Gives you a move worth weaving into your rotation. The TPS gain on boss fights is minor (on par with one extra HotR every thirty seconds). The loss of utility for trash and Heroics is huge however. Apparently nice if you PvP prot-specced. I'd avoid it, especially since we lost Exo as a ranged pickup ability.

Minor

Glyph of Sense Undead - With the large number of undead in T7 this was awesome. Remember to turn on Sense Undead! Crap in Tier 8 & 9, but what else you going to take?

Third Minor Glyph: There's nothing actually useful for tanking. Pick something useful to you. I use Kings so I can buff the whole raid without going OOM.

BAD!

Major
Glyph of ConsecrationThis interrupts your optimal rotation, and reduces your TPS. Additionally this makes add pick up on a mobile fight harder as you can't move your AoE threat as often. This would actually be a good glyph if it was one second (and perhaps "minor").

Glyph of SoR Was almost decent when it was 30%. Back to 10%, and sucks.

Glyph of Exorcism Was nice back when Exo was instant. Now crap.

Glyph of Spiritual Attunement

Majiben wrote:If you find yourself to be a permanent off tank this glyph can let you strech your resources a little farther but every tank that sees a boss now and then should know how to manage their resources properly without this glyph. Additionally, it provides no benefit if you already have the mana for a full rotation.

Knaughty says: "Mana Efficiency is for people not tanking enough mobs" Moved from "Meh" to "Bad". Learn to manage your Blue Rage Bar.