I like that some RTs have special abilities/debuffs. Even the relatively simple mechanics (reflect, death stomp, dread) add some difference between the RTs, which is good.
I haven't been on Bullroarer to see their new incarnations, but I like the idea of dropping their morale and boosting their DPS. Shorter fights that are harder would feel less tedious for those players seeking a bigger challenge.
Rewards need to be looked at to incentivize players to run the content more than once.
Players under level 90 should not trigger the RT's aggro. I haven't tested if they do, but if they currently can, I'd suggest making the RTs ignore players <90. Several of the RTs spawn in locations that are extremely easy for leveling landscapers to run into. The Suri-Kyla East spawn in Forochel is probably the best example of this - when the RT spawns there, it stomps very close to the road and over top of many mobs that Level 40s are expected to kill quite a few of.
Aside: Don't PCers represent their own views, not their servers? Subtle but important difference.
Neddor, Untrustworthy Guardian of Arkenstone
Massan, Captain Nutter of Laurelin