Which waist is better?

Got a toughy here i'd like some help with from people more knowledgeable than me! Which of these waists is better for tanking? I realise one is a DPS but with the mastery I can reforge the crit into something else and obviously the armor and stam increases are very helpful!

http://www.wowhead.com/item=63453/iron-will-girdle

http://www.wowhead.com/item=62384

Thanks for any help people!

Personally I'd take the mastery.

Much the same as the Exalted TER Ring, the Belt of the Ferocious Wolf has a higher Item Level and as such very high stats. You're getting crit that can be reforged to dodge or parry and you gain a load of stamina. I was using that Hyjal belt until Conclave gave me a nice combo Thunder Wall belt.

Not to be obtuse, but I would consider buying the BS crafted one as it has mastery and avoidance. It only needs one chaos orb, so it should be affordable. With the patch it will get a socket - I hope it does so partly at the expense of what seems to be it's excess strength (at least compared to the dps reputation one).