85 pally boosting 4x 65s

Hi back to multiboxing again, just started on my highest team, 4x 65 shammies. i dont play a pally so have no idea about this but how whats the fastest way for a 85 pally to clear/boost normal BC dungeons.

1. Ret or Prot?
2. what aura and buffs and seal to use?
3. how to stay healed up?
4. how do u kill 20 mobs at the same time, ie what aoe spells?
5. what rotation?

This is because i've had 2 pallies boost me thru SLabs. one completely wasted the dungeon in less than 15mins, the other struggled to stay alive. sorry for the noob questions.

I'd go for ret, superior damage, decent self healing whereas prot has pretty crap aoe compared to wotlk

In those instances it is not going to matter, even if you put it on heroic, If an 85 paladin couldn't stay alive then they were on a fail boat from a leveling service or something, seriously, seal of insight and auto attack and nothing can kill you there unless you purposely let it. Personally I would go prot, but im decent at it and can crank out in the 15-20k aoe with him still. I have just never cared for ret.