This is my summary on all the currently available glyphs for priest. It includes their name, level, description, and raid utility.


Holy

[Glyph of Renew] 15 Reduces the duration of your Renew by 3 sec. but increases the amount healed each tick by 25%. I rate it at 5/5, a must. You may of noticed that a reduction of 3 seconds and 25% increased heal actually puts out the same numbers. The only difference is that you now get it 3 seconds faster.

[Glyph of Smite] 15 Increases the chance you'll resist spell interruption when casting your Smite spell by 50%. 0/5, epic fail. Useless for raiding, might come in handy for solo.

[Glyph of Dispel Magic] 19 Your Dispel Magic spell also heals your target for 6% of maximum health. Not bad, 3/5. It's very sittuational in raiding, and im sure you can find something better, I think it would be better in PvP.

[Glyph of Fear Ward] 20 Reduces cooldown and duration of Fear Ward by 30 sec. 2/5, not my cup of tea, seems like a wasted glyph. As it stands there are no raids where fear spamming is active, although it may come in handy at points, I think there could be better.

[Glyph of Flash Heal] 20 Reduces the mana cost of your Flash Heal by 10% Another must have - 5/5. 10% is a huge amount, and in raiding its going to most likely be your most used heal, will save you about 70 mana per heal.

[Glyph of Holy Nova] 20 Your Holy Nova spell heals for an additional 40%, but deals 40% less damage. A mere 1/5. Not only does Holy Nova have a huge mana cost(965), but its limited to your party, and with about 2k bh this is only going to be healing about 1.5k health.

[Glyph of Prayer of Healing] 30 Your Prayer of Healing spell also heals an additional 20% of its initial heal over 6 sec. Hmm... 3/5. Can't think off too many places where Prayer of Healing is handy being only a party heal. And while 20% isn't too bad(about 1k if it crits), it's again very sittuational and I think there are better.

[Glyph of Spirit of Redemption] 30 All heals cast while Spirit of Redemption is active have a 20% chance to increase the remaining duration of Spirit of Redemption by 4 sec. A good one... kind of... 4/5. Infact... this is an excelent glyph, if you do die, spamming flash heals, or CoH, or anything quick really, can bump the timer up very fast, i've actually been able to survive as Spirit of Redemption(in a raid) for 68 seconds(thats up from 15 base). The only problem is it's very chance based, and in general if the healer is dying, then something is going wrong(or the healer is messing up), and while it meens mana free casts, you can't move around and it's very risky, but if you have a free spot, its definately worth it.

[Glyph of Lightwell] 40 Increases the amount healed by your Lightwell by 20%. Well... I don't see lightwell often in many raid builds, so 2/5.
It is a good glyph for what it does, but I can't see it being that useful in raids, it's not that useful for tanks and dps would have to be in range and stop dps to click it.

[Glyph of Circle of Healing] 50 Your Circle of Healing spell heals 1 additional target. Any CoH'er must have this! 5/5. An excelent glyph, and anyone who wants to play aoe spam healer should take this .

Discipline

[Glyph of Inner Fire] 15 Increases the charges on your Inner Fire spell by 20. 0/5, 100% waste of a glyph for raiding, good for pvp, although it will probably be dispelled.

[Glyph of Power Word: Shield] 15 Your Power Word: Shield also heals the target for 20% of the damage absorbed. Awkward... 3/5. This could come in handy when your tanks are death knights or paladins, however druids and warriors wont be able to generate rage through a shield, also quite good for self-healing, excelent for PvP.

[Glyph of Mass Dispel] 70 Reduces the mana cost of Mass Dispel by 20%. 0/5, waste of a major glyph, not going to be used that much that it will help in PvE.

Shadow

[Glyph of Fade] 15 Increases the duration and cooldown of your Fade spell by 50%. Hmm, its okay if your imba dps causes you threat problems, but im sure there are better. 2/5

[Glyph of Psychic Scream] 15 Increases the duration of your Psychic Scream by 1 sec. Useless in raids, 0/5.

[Glyph of Shadow Word: Pain] 15 Increases the damage done by your Mind Flay spell by 10% when your target is afflicted with Shadow Word: Pain. Dosn't stack with the benefit of talent Twisted Faith, a supposed bug, but until its fixed or changed 0/5. If it is a bug and does get fixed then. Must have - 5/5! You can't dps without this!

[Glyph of Mind Flay] 20 Increases the range of your Mind Flay spell by 10 yards, but it no longer reduces the target's movement speed. Not bad for raiding, a little extra range never hurt anyone, 3/5 you can easily fill it with something better.

[Glyph of Mind Control] 30 Increases the duration of your Mind Control spell by 12 sec. 0/5 useless, even on Razuvius, you still have to renew it sometime or other. And worse than that, dosn't effect PvP at all.

[Glyph of Scourge Imprisonment] 20 Increases the chance of success for your Shackle Undead spell by 8%. 1/5 As of yet shackling isn't really needed in raids, but can come in handy to save a death or even a whipe, but definately much better glyphs available.

[Glyph of Shadow] 25 While in Shadowform, your spell critical strikes increase your spell power by 10% of your Spirit for 10 sec. Must have for any shadow priest - 5/5.

[Glyph of Shadow Word: Death] 62 Targets below 35% health take an additional 5% damage from your Shadow Word: Death spell. Another good one - 4/5.

Reserved for minor glyphs

My fingers have gone numb from typing, ill finish the rest later xD

Reserved for PvP

Reserved for changes/overflow