My experience is that most COTF HA are essentially the same since the scaling change. The mob dps output is up slightly but 105 tank and healer merc are still fine, which means you can do them with any 3 random classes. If you do the daily bonus HAs the reward for the time spent is still great, especially if you make sure you have LOD or a potion running when you finish and get the task reward.
The Gribble mission mobs got hp buffed a fair bit too. Still doable, but takes longer than before. To be real though, those 3 tasks were broken-ly easy (and boring to be honest).
I'll be max AA again this week mostly from trying to run 2 of the daily COTF HAs a night.
