Make sure to keep (Cheap WoW Gold)them in front of you, there's no point trying to kill someone who takes the majority of their damage from your blocking their attacks if they're beating you in the back of the head.
It will take some(Cheap WoW Gold) practice but maneuver yourself so that they're all in front of you and at the worse somewhere in front but to the side. Never behind. Keep up holy shield as often as possible as well as a consecration that's perhaps one rank lower than your max (for mana conservation) That way your block rate is still going up by 30% and their taking max damage from blessing of sanctuary, while YOU keep as much mana as possible by doing the max damage possible.
Great. Now that you've got 5 mobs on you, and if you're comfortable with that (aka your health isn't going below 75%) start walking backwards into other groups of mobs. You'll find that as you move along tagging more mobs, the ones you picked up at the beginning are going to start dying... fast... and very close to each other whereas YOU, you legend you, are going to be staying relatively even at a decent HP count and doing equal dmg to everyone except the mob who's taking your axe in between the eyes.
Once upon a time when you were retribution you would take (Cheap WoW Gold)on 1 mob at a time, maybe two if you felt lucky and beat them down bit by bit simple. Prot is superior in that when you change your focus target to the mob after the judgement of light one goes down, the next mob you target will already be below 50% guaranteed! =D Then you just rinse and repeat the judge, reseal, tips from above and walaa before you know it everyone in a 2 mile radius is dead and you're standing there with a buttload of corpses to loot yippee =D