Yeah, Ret can support, and, heal yeah... that's awesome... why are you picking a support/healer class with a healer? Rets are preferrably paired with rogues for that reason, MoB can also be used as support to heal an ally being bursted. Meanwhile BDK still keeps their default interrupt abilities rets lack, I fail to see how a ret paladin works better with a disc/resto sham than a BDK Does, but I digress.
Also, Wings aren't better for burst, not only can they be dispelled but they can be spellstolen (Hysteria can only be removed through tranquilizing shot), and using it leaves you vulnerable to being bursted yourself because of Forbearance, and on top of that, Hysteria can be cast on allies as well if you want to add in an extra buff to another melee partner.
My bad, I was looking at the regular AA stats, not heroic.
I fail to see how does unholy get a much better time doing everything better than BDK? Both have undispellable snares (Desecrated Ground / Glyph of Heart Strike), so what is it then? AMZ doesn't help to prevent kiting, only nullify damage. Is it the ghoul stun?
I saw everyone complaining about DRW not working in this thread, so I assumed as much, I don't play in this server so I never tested it myself ¯\_(ツ)_/¯
Again, I fail to see how can unholy have a better time not getting kited than BDK does.
Then play that "unique" Unholy spec, go play it and have fun yourself with your "Bane" of all caster classes lol, but at the end of the day, a BDK would still trash out any other melee class, including unholy ;^)