It's more personal preference, and I'd have to say exp cap is easily worth twice its amount of stats as crit/haste.
This sounds about right. Going hard mastery, I'm shuffling about 8k secondary stats into it that I could have funneled into crit, giving me another 20% damage more or less. Sometimes more damage is useful and EH less so (Tortos), sometimes more EH is more important (basically every other fight
).
Totally dependent on the fight ... on Tortos I probably lose over 80k dps, on Dark Animus I'd likely lose like 20. Strange that you think Megaera is a mastery fight, I found it one of the smoothest (and lowest) damage intake fights of this tier.
Believe me, I'd love to do all-out max dps, but dead tanks do no damage
Once everything is on farm and we have more gear, I'm totally going full crit and light up the meters (even more so than we currently are, heh). And yes, mastery or no is a fairly personal choice, different for each person depending on their level of progression, healing availability, and tanking setup.
You could just simply save EB for when Frigid Assault is about to hit in either build. A better argument would be that it's a moderately tight dps check to kill Sul before his first possession, and if you need a BrM's 300k dps vs 250k, then go crit.