Class dps differences

[soxyboi]

Is gurthalak a bigger dps gain for an unholy dk than the legendary staff for a mage or daggers for a rogue?

I consistently top dps charts for my guild as unholy with 402 ilvl gear and normal gurth, and as a retort to a legendary user in our raid that was having a pop at someone lower down the charts, I exclaimed that a mage with 402 ilvl and legendary staff and a rogue with 402 ilvl and legendary daggers should be out dpsing me. This was then met with arguements that gurth was in fact a bigger dps boost for death knights than either legendary was for said classes.

So long story short, whats best for dps at 402 ilvl, dk with normal gurth, mage with legendary or rogue with legendaries?

[Regen]

Rogue > Mage > you. Is how it should be as far as I know. Or at least that's how it ends up in most situations. Rogues are in a good place damage wise right now, and any casters, namely fire mage, still get a great dps increase from legendary.

[Mnevis]

Right now, statistically speaking, it should be going Rogue>Mage>DK on average. Gurthalak is roughly as good for you (at least, can be, often is, sometimes it's better) as a Dragonwrath is for a Mage, but Mages are just a bit better to start with. I'm not sure what % increase a hypothetical Rogue who otherwise would have access to only 403/397 weapons gets from 416 FotF. Our Rogue jumped up a few thousand dps when he finished his, I know that.