Hmmm stamina trinkets should be the getgo trinkets for any tank since you get double bonus when taking stamina on a trinket instead of gems.
If you do not need that stamina though...go for avoidance/crit. I would pick stamina trinkets though, even for 10man.
As klaus wrote...I do not understand all the dodge > parry stuff. With high avoidance ratings you want twice/triple the parry rating since the DR on parry is way higher than the DR on dodge. Just go for parry and reforge anything else to dodge.