The warrior and rogue in the OP's guild chat are ignorant, arrogant and rude. I really get sick of rogues who refuse to use Omen but pull aggro and then yell at me. And warriors who fight a paladin getting to tank are just way too full of themselves.
On the other hand, Warriors do have a few advantages.
The biggest issue is gear dependance. In 2.0 we wanted a warrior MT and a paladin OT as we did our first Karazhan run ever. There was no badge gear or craftable tankadin epics. The warrior had an easy time getting uncrushable from regular instances, quests and a couple crafted blues. On top of that a warrior had shield wall & last stand to help undergeared and inexperienced healers/dps.
Fortunately, it seems like Blizzard eliminated the gear gap after a few patches. Hopefully the more balanced gearing will continue in WotLK.
Other minor issues include Warriors being able to interrupt or reflect spells. They do not care about silences or spell reflect bubbles on mobs. Warriors with skill can handle fears without a priest in the raid. On the rare mob that dispells buffs dependance on Righteous Fury is a unique handicap. Thunderclap and Demoralizing Shout provide a lot of mitigation for a few encounters too.
Of course, all of this is very minor. It can be dealt with through raid composition and intelligent tactics.
Still warrior advantages and history are worth considering when developing those tactics. The former gear gap in particular is worth remembering during Beta testing of WotLK.
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