I’ll probably start with wizard, the haedrigs gift set is firebirds which is super powerful. Once I’m up and running with that I’ll start a witch doctor so I can try out the crazy chicken build… I’m looking forward to that!
There was an old build that used Manajuma's Way with Helltooth Harness to give you gargs + chicken. That was fun but was always rate limited by the pet AI. I played a bit of the new one on non-season and it's pretty solid. Could be my favorite T16 farming build.
Eh, I like them. They are a nice supplement to bounties to get you some extra materials and GR keys. My biggest complaint is that they send you to town rather than leaving you where you were.