What set of gear are you working on?
Your set of gear for boss who do lots of fast small hits (Lotheb) and for trash Block>dodge>parry
For hard hitting bosses (Patchwerk) dodge>parry>block
For bosses with lost of unavoidable damage (Malygos) stam>all
Block value is one of the greatest assets to Pally tanks atm. With the 30% from HS and the large amounts on BR/BV on tear sets we can get to the magic 102.4% pretty easily. In addition to that Def is one of the best avoidance stats and in most cases is more valuable then straight dodge or parry.