Sorry people, all this discussion has no sense from a build using MoW should work.
If u get Master of Wilds developers supose that u are a MAX DPS CASTER DRUID WATER ELE FORM (not exactly DC build, which is a CC build), and theres no way in this game to be equally good in all roles (dps, cc, tank, heal, instakill...) so u must choose.
Lets compare:
Primal Avatar:
30 universal spellpower
5 caster lvs (usually ~50% bonus with main spells, as calculated)
250 SP
Tsunami, that does 60d10 dmg at lv 30, WIS DC, COLD DMG WATER SPELL
Dryad (500-800 bolts on lv 30)
Summer Smoke
Storm Rage
Shiradi
31 spellpower
5 caster lvs
All procs
Obs.: Most druid spells hits multiple times (I belive that earthquake only do that miserable dmg (~16-20) to proc in shiradi. So Druid spell suits shiradi very well.
Draconic
30 spellpower one element
300 SP
2 dc, 2 max caster lv (can be twisted both)
Energy Burst and other actives, but all have long CD and CHA BASED DC (Means half or no dmg in most endgame scenarios) 30d15+30 at lv 30 (similar to Tsunami with cd and no cc)
Exalted Angel:
Exalted offers light dmg options, thats clearly not focus of cold water ele druid. Its not possible to achive max cold and light and fire spell power altogather and trouble rotation. Its maybe competitive in fire elemental base form but onyl 5 caster lv to produce flame from MoW worth only if u are casting this 90% of time.
Primal and Shiradi are clearly winners for dps perspective of Water Elemental pure druid dps build and no single feat can ramp up dmg as MoW does, not even Greater Ruin, since u are not focusing force spellpower or critical?
Druids dont have a large SP pool and is probably impossible to keep Greater Ruin (200 sp using all feats) on cd in a Raid Boss Endgame Battle. On the other way u can do 50% more dmg with Lightning bolt and Creeping cold for 3 sp (with all metafeats)
Sure DC is important, but 3 DC from Exalted Angel can never do such difference in dmg, plus creeping cold, WoB, produce flame dont even have a dc.
Dryad and Stormrage are also vastly underrated abilities. Dryad costs nothing and does 500-800 bolts, plus 50-100 thorns almost every 2 or 3 seconds at lv 30, a sure dps increase
Stormrage can look expansive at first glace but its 10d20 Eletric dmg for second, for 18 seconds, what means 180d20 eletric dmg for 50sp, or 18d20 for 5 sp. CD is shorter than duration so it means always active whiel u have sp. For comparison energy burst does 30d15+15 in lv30 (450 average) each 30 seconds, Stormrage does 300d20 (3000 average) in 30 seconds :O (single target tough)
All discussion here happens because u dont want give away earthquake dc, or tankness, or solability, but sure MoW is the best dps epic feat for dps in pure druid water ele style, considering max dps in an endgame raid envirionment and/or balanced full partys for Legendary Elite or Reaper quests where u dont need to tank or heal yourself (a lot). with extreme dmg penalities in high reaper, max dps build are the only way to do the job in aceptable time, at same time making your tank and self healing efforts useless unless heavily focused.
To have maxed EQ DC at same time is distopya, since u need higthen, wiz past life, completonist, enbolden, all Evo Epell Focus, all Wis from ED enhancemets and Scion of Air feats. Sure cant max dps getting all this feats and all this measure will still fail dc in reflex mobs in LE or Reaper.
DPS and SP cost saver of MoW/Primal combination for pure druids is unmatched in my opinion. Not sure if Shiradi or Primal doing more, but sure i go Primal for some synergys, lore and playstyle.