For alliance, I'd go with priest and paladin both x3 lock.

Pros;

Kings
Fortitdue
Non intterrrupted Hellifre due to Intensity lock talent and Conc aura making Hellfire best aoe in game meaning that you can pull 15 mobs and kill them ultra fast since all your ticks will be put to use. No lost dmg, They will die from Single Hellfire, Priest can heal all, EXTREMELY HIGH health pool,mana etc.
Might for VW means no agrro at all plus salvation on locks.

Extreemly good durable pvp setup.

Cons:

1 dps less. that'all folks.


I'd always pick pala over priest anyways due to salvation and conc aura.