I get really annoyed when I see someone STILL complaining about second wind.
Please tell me why you can't do 11k dps at level 90?
Mage has always been strong,
Feral is another good 1v1 class.
Warriors atm can hold their ground vs most classes. Choosing double time can help lock down a mage.
Feral and mage are probably my top 2 1 v 1 situation, but also hunters like said before are usually amazing 1v1 except everyone and their mom has a hunter now with maybe 10% of em actually know how to play lol but again this is just my opinion
Warrior with Second Wind > Mage > Warrior without Second Wind > Spriest > Trash
In my opinion i think its unholy dk (seems to have decent survivalbility compared to frost).