I really like Druids...
They give you a lot of strong options.

Chances are, in PvP they're not as strong as the 4x DK + Heals team.
Mainly because of their lack of cleave; they're quite a bit stronger DPS vs a single target.
But then again, they have flexibility with stealth to avoid/bypass things a non-stealth team cannot avoid.

You can PvE queue, as Tank + Heals + DPS (either melee or ranged, or a mix if you really wanted).



You can play 5x Feral, or some combination of Feral + Heals.
You can play 5x Resto, for some very serious healing power.

Shifting (or powershifting aka shifting into the form you're already in) removes snares and will remove roots too (as it used to)... and we're faster than almost everyone else... meaning you can escape from almost anything.

Nature's Swiftness will be usable in any form.
With Healing Touch, that's going to be five large heals per minute, on round-robin.
Not to mention already gaining decent health (and mana) from melee crits.
And having your next nature spell be instant, any time you do a finisher with 5 combo points.