When it comes to levelling the Priest Class from 1-60 fast, XP grinding locations is only half the battle. You will need to make sure your weapon does enough DPS so that you can clear these mobs fast enough, it should also be noted that monster should be around your level to make sure to gain the 100% XP Reward. The Level your character should be before you start that specific location will be indicated to left in a Blue Color for Alliance [Lvl 35-39] and the Orange Color for Horde [Lvl 35-39]. The Mobs you are looking for in that specific area names are Bolded [Mob Name].
HOWEVER, I did find out that there was an exploit to get around it (one of those rare exploits where you would WANT a bit of lag). Basically if you spammed “X” to sit/stand/sit/stand, then if a mob hit you while you were sitting and right as you were standing up, then it would register as a crit, but on the server side you would be standing, thus allowing the ability to proc.
As many of you know, leveling a Warrior in Classic is not easy - it’s almost like playing the game on hard mode. Despite having low mobility, low sustain, and the highest gear dependance in the game, Warriors are by far the most played class in Vanilla. There is a sort of masochistic appeal to leveling the hardest class in the game. To some, this epic challenge provides the purest Vanilla experience, and watching an expert pilot this class with finesse is like watching an artist at work.