I'm playing 5x Feral (main spec) and 5x Resto (off-spec).
You could optionally go with Boomkin, instead of Feral.
Quite a bit of fun.

My Feral specs are slightly different.
One toon has Natural Reaction, Rend & Tear, and Pulverize (and Maul Glyph).
Another has Infected Wounds (and Rake Glyph).
Another went with Feral Aggression (and Faerie Fire Glyph).
The last two went with Brutal Impact (and B.Rez Glyph).
The non-tanks will take Perseverance (in Resto).
That basically covers the Feral stuff I'd want, both PvE and PvP.

With any of the non-Bear spec'd toons in Resto, that should be a decent PvE group.
And have the option of 5x Resto, for a change of pace.
The group is primarily focused on PvP of course.

Epic Flight makes ground spawn collections fast; you don't have to land or drop out of Flight Form.
Aquatic Form really makes underwater stuff a ton easier.

I'm glyphing: Instant Roots, Berserk (for Fear Immunity), Thorns, Mangle..
Going with a Mangle, Rake, Mangle, Mangle, Rip rotation.
Bleeds are quite strong, ignoring armor.

A fun team.