Originally Posted by
KampKanye
I can chime is as someone with a 110 ret and DK (2k rbgs, nothing special, but no slouch). Without a dispeller, Ret is still more mobile. You blow freedom+steed and you'll usually make it far enough to effective before freedom gets removed, and you can do it twice as often as a DK. Ret stun is significantly better than DK stun since you can reduce the cooldown on it. Unbreakable Will only works on hard cc, not snares and roots like they said. That means if you sit in a sheep/stun for 2 seconds, it will break it. It's even useful for cc that breaks on damage since if you sit in for 2 seconds, you'll likely sit the whole duration.
Really, any situation where a Ret's mobility will be a major weakness, will also be a weakness for the DK. The difference is that a Ret can easily do twice as much burst as a frost DK on top of having much better group utility. That's why Ret comps went pretty far while the DK comps flopped almost immediately.