I started boxing with Leigon so I'm still pretty new but been doing it long enough to know how things work.

I went with Blood DK, the reason being I wanted a good "all round team" with a goal of wPvP (balance is completely non-existent). My comp works pretty well, I have a Pally and 4x Blood DK. (but if I could re-work I would have 5x Blood DK and dump the pally, then again the healing utility out of combat has saved my skin a few times).

The grip is what keeps me on this spec.

In wPvP I find the challenge is "time on target" moreso with Melee but the grip works so well for me. 8x interrupts, target changes, and simply messes up positioning of who you are fighting.

They work very well for PvE (although I only play PvP and do bare minimum to get mid-range gear).

If you want to play PvE many people are saying good things about an all-druid bear team and I think the go-to is still 5x Protection Paladins.

I have tried 5x lock and 5x hunter but found them a little lacking in wPvP, hunter can 1-shot anybody but if a DH gets in the middle of you it's game over.

With my current team, a DH needs to be 900+ and has a 50/50 chance at 1v5 (yes, this sounds ridiculous but it's the state of the game) unless my honour medallion doesn't activate in the open world, then I just die in 6 seconds (/lol).

Guardian druids I can kill 1v5 but only if it's me vs them with nobody else getting involved (this requires waiting out their CD and leeching through their damage with the DK and the Paladin running away from the bear like a crazy man, once they burn their "lock to 100% HP" CD I burst and throw a few Gunpowder Charges.

So, in summary Blood DK is good in terms of surviving through things but doesn't have the burst of others.

Expect to die in seconds if your not a tank in wPvP - assuming you're on a PvP server - I just started a new Druid team on Chamber of Aspects and one of them is on a PVP realm so I can choose between the two now.