What class in wow is the best

Okk.....Ive love explaining things about WoW so here we are..First It all depends on what you want to do at 80 PvP Battle ground Pvp Whihc is dunegons and raids.
Lets narrow it down if you want to be able to pvp VERY WELL and do it alot ROGUE!!!!
If you like tanking in dunegons and raids Pallys, warriors, Dks, druids in bear,and Not sure btu shaman.
If you like healing Shaman, pally, priest,and druids
See and for damage all classes can but its either melle or casting some are mixed.
Ok so far pallys and druids and shammys can heal and tank and dps.For dps its mixed with meele and casting a bit!These are my suggestion for fun never get board of one role.
Ill role it down this list
1.Locks They have the highest dps and some of there spells can heal them in battle they also have minions that can act as tanks
2.Pallys they can tank well they dps well and can heal
3.Druid to much fun!!fomrs are a blast full talent points for meelle you can go tank/warrior cat/rogue realy efficent with every role
4.Shammys they can heal ok dps and sorta tank
5.dk's have many ways to gain hp they can tank dps well and pets.
This is hard im gonna say
6.Hunter/mage equaly power though mage has very strgong hits but slower at firerate huinter fast fire with med damage
7.Rogues are very good 1 on 1 but not it groups and that takes a big part in wow, but with a skilled palyer rogue have good combos to kill almost all the classes
Lol last i think are priest THey suck badly in dmage form no healing just get a pally?? they Save can dps while healing!priest are good for healing and that's it!!!!!
Sorry for the grammar dint take enough time