The only two trinkets available from raid bosses are the two BiS trinkets. There isn't really any discussion to be had, especially after the rapture changes coming in 5.2.
HC spirits>normal spirits>Relic. Qin-xi is up for debate but I'd definitely put it below relic atm, depending on how mighly you value an output proc it might overtake relic or even spirits in the next patch (avg. numbers wise it'll be the best).
I use a double upgraded relic and Spirits of the Sun, hopefully I'll be able to grab the heroic version when my guild finally kills Tsulong.
I don't care for trinkets with random int procs. Seeing as I play a disc priest right now, my opinion of static spirit might change in 5.2 though. Although it's possible I'll just swap to holy - it's difficult to say so early in their testing.