KnightRyder

My leveling pack of Jan 18th 2015.
May 16 2017 Update:
Figured I'd update this. These are all the grinding profiles I used to go from 90-100 for Warlords of Draenor.
Personally, I suggest using the Pre-Garrison file for Horde, then go to Gorgrond Mistcreep Mire, and then to Spires of Arak Writhing Mire. The mobs that it grinds provide above average XP.
If your character can't handle the mobs there at the at the level in brackets, I'd say use one of the others. I usually only had a problem if I was under geared or extremely squishy class. 

Plugin for searching for in-game items
Edge of Reality farm - Tal+Nag.xml
Edge of Reality farm - SMV+SoA.xml

Druid - Guardian [Cenarion Ward, Incapacitating Roar, Dream of Cenarius]
 
Guardian druid profile I used to level.

My fightclass I use with shadow priest. One with and without the level 100 talent Clarity of Power

This profile is for 90's Horde characters fresh off the boat who have not opened their garrison yet. I found that when killing the Gronnlings for the quest [A Gronnling Problem] that you get huge XP from them. If you want to use this profile, I would suggest not turning any quests once you get this one.

I get 891xp per kill unrested.. Most of my 90's have rested xp so this is 1782 XP per kill. Since they are fast respawn due to quest, I get a little over 300k XP per hour.

You can't get ganked as it is phased (I think anyway) and any other Horde who will see you will just leave your phase after they do a couple quests and make the garrison.

The downside of this profile is that you have no access to food/drink/repair unless you run to the nearest town or have repair mount.