22 monk with 2801 defense here
since the agility nerf i cant tank crap but before that i was MT for my group, now you are better off getting a scout, at least until they fix the problem before then we could tank as well as guardians just in a different way where you are slow [Removed for Content] and just take the dmg and hope your armor protects you we dodge the attacks before patch we could tank as well as a guardian/pally if the monk/bruiser knew what they were doing