What is the most popular class in World of Warcraft?

The best World of Warcraft class is the one you enjoy playing most. If you are a people person, play Warrior or Priest, if you are a loner, play Warlock or Hunter, if you like it mixed, Druid or Shaman for a mixed experience.

or you can just go with a pally or warlock (best level 80 classes by FAR, PVP and everything else)
well there isant a best class the classes are the same over all diffrent people are good at diffrent class i am good at rouge hunter and abit death knight and im realy bad at pally priest and warrior