Pardon me for asking, but how do you possibly get up to 874 Spirit? Based on the gear in your profile with full buffs you would be just slightly above 700 Spirit. In your current snapshot you have BoK, GotW, DS, and Alchemist Stone on and have 694 Spirit, but are missing Draenic Wisdom which would bring you a little higher. This would dramatically change the numbers you posted.

Running with your current buffed stats vs. the adjusted values:

(0.001+(694)*0.009327*(688^0.5)*5 = 848.92
(0.001+(705.43)*0.009327*(677^0.5)*5 = 855.98

Calculating for Meditation + 30% OO5SR:
(848.92*.3) + (848.92*.7*.3) = 432.95
(855.98*.3) + (855.98*.7*.3) = 436.55

Difference of 3.6 Mp5, not counting regen "tricks" (probably around 21-28 extra mana per 3 minutes on an Inner Focus/Clearcasting routine) or Innervates (+113 mana) which would increase that by a fair margin. Disregarding those factors--which I'm not sure is very realistic--would mean that the regen would overtake the base Int in terms of mana pool after 3.9 minutes, which is longer than most boss fights unless you severely outgear them.

(Also, I'm not totally sure what you mean by "At 3.2 mana/5s it'd take 8.6 min to break even" either, as 3.2 Mp5 would generate 165 mana in 258 seconds, which is only 4.3 minutes? Perhaps it's late and I'm tired, but why is your value double there? Over a 5 minute fight, 165 mana is only equivalent to (165 / 300 * 5) = 2.75 Mp5.)

If you were indeed approaching 900 Spirit, one would assume that the relative value of Int (as discussed in the other thread) would increase somewhat. But given "normal" Priest stats (which is probably somehwere in the realm of 600-700 Spirit) I don't believe 9 Spirit vs. 10 Int (which comes out to be 11.4345 Spirit vs. 11 Int after multipliers for Humans) will typically be in favor of Int. One may also argue that when approaching 900 Spirit, regen is somewhat of a less important issue and one may primarily be focusing on +Healing anyhow, where Spirit would also win due to its more balanced nature.

I would rather not debate healing vs. stamina as I think it's highly situational and very much depending on the fight involved. Some fights involve minimal risk to healers (Kaz'rogal, Azgalor, etc.), and thus one would want to wear optimal healing stats. Other fights involve high risk (Naj'entus, Illidari Council, etc.) and one would want to wear Stamina-oriented gear. That said, for pure healing stats the Soul-Strider Boots would have higher regen and higher healing, and thus are pretty clear winners to me for an optimal healing piece--certainly worth considering if Stamina is not a specific issue.

Anyhow... in regard to [Leggings of Eternity] vs. [Adorned Supernal Legwraps]. It seems to me that Adorned Supernal Legwraps actually end up winning, based on multipliers and whatnot. To compare the breakdown here:

Adorned Supernal Legwraps
40 Intellect
62 Spirit
114 Healing

Leggings of Eternity
38 Intellect
30 Spirit
130 Healing
16 Mp5

Difference:
+2 Intellect
+32 Spirit
-16 Healing
-16 Mp5

32 Spirit for a Human equates to 40.656 Spirit raid-buffed, meaning 14.2 Healing. This brings the +Healing advantage down to 1.8 in that case. Taking somewhat "average" figures of 700 Spirit/600 Int similar to the quoted bit, we'd end up with:

Leggins of Eternity
(0.001+(700)*0.009327*(600^0.5)*5 = 799.63 (+16) Regen -> (239.9 + 16) = 255.9 Mp5

Adorned Supernal Legwraps
(0.001+(740.656)*0.009327*(602^0.5)*5 = 847.48 Regen -> 254.2 Mp5

Adjusting for ~30% OO5SR, you would end up getting a quite a bit more total regen out of the 31.85 additional OO5SR regen value. As you're only talking about a difference of less than 2 +healing at that point, I can't really see a very compelling argument for Leggings of Eternity actually being better--other than the fact that I spent a lot of DKP getting mine.

If you're not a Human, that may skew the value down a bit... but chances are it would be still be slightly better or around the same. I am a bit concerned, however, that the Human racial is a bit "too good" for a Priest with all these new changes. I see many calculations disregarding it, but an 11.55% increase in Spirit nowadays is pretty insane when you think about it.

So basically, the weapon progression for a priest looks like:

[Light's Justice] + [Voodoo Shaker]

[Staff of Immaculate Recovery] (Bank LJ for a while)

[Light's Justice] + [Scepter of Purification]


Not that I mind LJ being a "best in slot" piece (fewer enchants required), but it's kinda funny that the last boss in the first raid and the last boss in the last raid are the only 2 1-handers.


EDIT: actually, you'd be hard pressed to upgrade -at all- until Archimonde. You could take [Staff of Immaculate Recovery] as your spellsurge weapon and stick with LJ/VS until Archimonde.

Hmm...

I wonder if [Robes of Heavenly Purpose] would be worth breaking 3 piece PMC post-patch (assuming it goes through)

Actually if I could still use mana potions and have an average starting mana pool (not to mention a shadow priest and/or shaman although those wouldn't be needed for my point) I'd heal a lot better with +50k healing and 0 mp5 on gear and 0 spirit than any priest geared with any gear avaialble in the game using any kind of buffs he wants. There is no mp5 requirement if your +healing is high enough. Of course when you talk such huge numbers there's the problem of downranking so far down etc but with such high healing if you spam the highest rank that you could spam infinitely you'll do enough healing to heal anyone to full in 1 heal.