Okay, forgive me if this is a repost, I searched and didn't find any like it. Okay, so I noticed that most holy paladins try to take on mobs 1 at a time. I've been using a much more efficient way to take on 6-8 mobs in the time it takes for 1(Well, I can anyway in my kara epics and 1 blue). The spec I use is 41/20/0.
1.) Round up mobs (epic mount with crusader aura helps)
2.) Put on Concentration Aura
3.) Lay down Consecration
4.) Spam Flash of Light
5.) Re-consecrate
etc.
If all else fails, pally bubble ftw. Don't use Lay on Hands though, as it will most likely end up in a wipe (you with no mana and still a bunch of mobs)
EDIT: Sorry about the text wall, this is my first post >.<