Last night when my guild killed Spirit Kings i ranked 2 with 63873 DPS(already down to 6th ;_; QQ) with 4922 mastery and 3967 crit.
Now, the funny thing is, wrath is only 24% of his dmg whilst it is 27.5% of mine. As you have much more crit than me, you should have better wraths, but i did 600k more dmg with my wraths. The reason could be that you didn't get to use your BL to the fullest, as i did. Please reply when you got BL and wether you used it to the fullest, or was interrupted for something. (I had to do 1 tranq in my second HotW).
Now here's another funny thing: we have almost the same uptime on both rip 76,6-76,2% and rake 82-82%, however your total bleed dmg is higher than mine. This is probably just the difference in uptime though, as i have sliiightly less.
While you don't seem to lose any dmg on the bleeds, i still doubt that crit > mastery, simply because stacking crit causes you to become very dependant on constanly being smacking the boss, as it boosts your autoattacfk significantly. That is just not very good in MV, as many of the bosses gives you downtime due to mechanics, but on the bosses where you have high uptime on you autos, like this one, your autoattack alone gives you increased dmg.
So without really concluding anything new, im gonna wrap this post up, since it became a lot longer that i mean it to be xD And please reply on the BL thing if you read this Dought

~ Calliat