Bis dps

Hello. Guys I just wanted to know is there any class which can do more dps than a full bis fury warrior with shadowmourne in PVE icecrown realm?

the dps a class can do depends of a lot of stuff.
for instance, warriors will suffer quite a lot on bosses like PP when they need to move around quite a lot, making hunters awesome to dps there, but few can outdps warrs at dbs for instance. also, in a given boss there can be stuff that lowers our dps (get tombs on sindy, get grabbed by valks, etc)

the clases that COMPETE with a warrior (wich means they pull more or less the same dps on roughly every boss) are UHdks, hunters and fire mages. but that does not mean any of them is better or worse.

Fury Warrior is the best pure DPS class of the expansion.
Sure, its going to suffer on fights where u have to move, but when it comes to overall performance, both Single Target and Multi Target DPS, Fury War is ur number one choice.

Retri Paladins are also awesome, and they bring a lot of utility and buffs to the raid, so they are better in that manner.

Fire TTW Mages, are by far best for DPS on most Single Target encounters.

Combat Rogues are also one of the OP classes for single target DPS...

Than, there are the most important factors.
Skill and Expirience.
If u dont want to invest the time to learn the class, and how to play it in the best way posible, beeing best Class/Spec of the expansion wont help u at all.
I know fair amount of wars that are bis and yet they do less dps than most other classes.

Almost all classes and specs are viable, needed and can do awesome DPS (only Ele and Enha shamans are suc), aslong as u learn how to play them properly...