Most annoying class / combo to kill in cata

[myrkyr]

Arms Warriors duh.
I can already imagine them rp-ing as WH40k assault marines with their stupid heroic leap aoe stun.

[Malteser]

i am quitting rogue, they are getting nerfed to be gimped warrior.

Mages, they are getting buffed, like they need it ( frost mage)

[Boley]

Im goin for DK because of the new instant deseases & selfhealing strike & spell copying

& im gona go for Rogue Mage Priest

Right now its too hard to tell, everything is beta at the moment. All the spells and talents will most like be changed before cata comes out, and then it still depends on the player and the gear! You cant tell yet