I have 7 lvl 90 and 6 of them in LFR (the 1 left is rogue which just dinged yesterday)

My gears on all toon is with ilvl 485~500, and based on my experience, the dps ranking as below.

1) Warlock (Demo)
2) Shadow priest
3) Frost mage / arcane only work on MSV, TOT is nightmare beside Megara.
4) Ele Shaman
5) Fury Warrior - no luck on weapon and always die one.
6) Boomkin

Boomkin is the weakest of all the toon, he took the longest time to kill tiller farm rodden / bird.

However, when come to solo thunder island rare. the ranking changed abit.

1) Warlock Demo <= can solo all
2) Shadow priest <= can solo most
3) Ele shaman <= can solo a few easy one
4) Boomkin <= can solo a few easy one
5) Mage <= cannot solo anything
6) fury warrior <= cannot solo anything

Why I rank warrior below mage (as they are both under can't solo anything catergory) is because mage can survive if things gone bad, and can safety survive AOE boss (Haywire) by staying max range. while warrior means repair bills and is the least toon I wanna play.

So you see WOW IS A GAME OF UNFAIR... Some class has it all and some don't.

I'm not complain as I'll have 11 lvl 90 soon (soon i mean before end of June) as the exp nerf in 5.3.

Just think why is it so unfair to some toon. I'll pull my hair out if I have a main and it's Boomkin or Fury Warrior. (I know by going Bear or Prot Warrior will make solo bosses easier, but I don't have time to play off-spec... as I only have time to LFR and they are meant to be FARMER to farm cloth...)

Anyone please share your experience. I know DK/Pally/Hunter is GOD like when come to solo rares, but I level other toon before these is due to profession (i need to level tailor/blacksmite/leatherworker miner/skinner/herbal first)