I'll put a screenshot up later tonight, but I've noticed everything from training dummies to bosses partial resisting arcane.

Sorry, I didn't mean to imply that a few glances at a combat log constitutes any kind of evidence. It could have been RNG with the level-based resist, or maybe there was no hit debuff on the boss at that time. Actually it's pretty much the same as I'm seeing on the training dummy now, so I should have checked that first.

I'm still curious if any bosses have arcane/fire/frost resist which might be worth using CoE, even if the DK or boomkin buff is already present.

How is the armor of Ice Armor calculated while using 2/2 Frost Warding and Glyph of Ice Armor? Also, are raidbosses/dungeon bosses affected by the chill effect of Ice Armor?

Wy i am doesnt see here an xtra Area for 18/53/0 ?
Or is this Specc not valuable against FFB and Deep Arcane ?
As far as i see Manly playing this Specc. Are there any Numbers or WWS for this ?

Thx so far for this information. But as you said FB is after arcane the best dps build and therefore it might be interesting to see some statistics for crit modifier and the gear solutions to get 17% hit with no talents.
In my guild are 3 mages and we need of course 1 mage for scourge and it is perhaps more efficient to skill deep fire instead of the 51-20-0. Also the last patch informations show that arcane will be little weaker now.

Is it allowed to create such a thread in the mage subforum?

The 'best' dps build, for many people, is simply your personal preference between the three frontrunning specs. The differences are relatively small enough such that player skill / gear / latency can be more influential factors than the spec itself. This does not apply to everyone, but for a great deal of players.

Bedrayne eloquently mentioned what the 'best' spec is currently from an EJ standpoint. However for many players, the best spec is simply a choice between Arcane / Fireball / FFB - with all being an acceptable choice.

Acording to rawr (modeled with my gear):

FFB: 0 baseline
Arcane+scorch: 0
Fireball: +0.5%
Arcane: +7%

1. The gear was baselined on FFB ie. I didn't regem for fireball/arcane, I did change gear to be hitcapped and swapped a piece for arcane.
2. Focus Magic buff the one you give to someone else isn't included in fireball or arcane, assuming 2 fireball mages then fire gains around 3% more dps due to circular FM-ing.
3. Arcane doesn't include the shatter combo as it was hotfixed, and the glyph is 3% (post hotfix).
4. Rune of Razorice is enabled.
5. Rawr build used is 30730, one thing I'm uncerain of is if it models AM as gaining the buff or not, in either case Arcane number can be considered as equal or lower then the correct one.

Click on the living bomb damage. Landed/crits means that it is exploding. Dot is the Dot damage.

Also, you do want living bomb to explode, then refresh it right after. This is for extra damage, hot streak procs if it crits, and enough other reasons to make me wonder why you would think otherwise. Always let bomb go boom before reapplying is a good general practice.

You can't "refresh" living bomb before it explodes unless you cast it on another target. It will tell you that a more powerful spell is already on the boss if you try to. If you are trying to check on this person's DPS however, the LB uptime is what you want to be looking for.

I don't believe the "more powerful spell" message always applies, for the same reasons that you can try to override mana shield or ice barrier with a new cast and see the same message, and at other times you can't. I believe it has something to do with the the coefficient that is used for the spells. Regardless of whether that's the reason, it isn't a guarantee that you will be unable to refresh living bomb 100% of the time. It shouldn't even be an issue though. Scorchio2 provides an excellent tracking display for Scorch and Living Bomb uptimes.

I have never encountered a time where I could reapply LB on my target before it exploded, regardless or procs, trinkets, or buffs. Sometimes I wish I could have, like when I applied it on Maexxna and couldn't sync it with the spider spawns. Nevertheless, I was never able to "refresh" my LB.