Why 2 on Use Trinkets? Are you talking about Pol's?
For me Pol's is no option anymore since the +5 Itemlv Buff on BRF Items. I only got the 670 Version of it.
I personally would rank my trinkets something like this
offensive: BFD 685 > Evergaze 691 > Turntable 685
defensive: Turntable 685 > Evergaze 691 > BFD 685
I'm not sure how (if it is possible) to compare mastery against bonus armor from a defensive PoV. In general it means Armor > All, but on the other side "the more mastery the better it will be".
So the question is: Should BFD 685 be better because of the static armor vs. Evergaze 691 with static mastery, although it's 6 Itemlv lower?
I would just sim it, when it would be that easy to figure out the effectiveness of the trinkets in practical terms. As far as I know it's not that easy because of certain boss mechanics etc.