for me it would probably be:
Guild:
Tier 1
Sonnia, Lucius, Hoffman
Tier 2
Perdita, Lady J, McCabe
Tier 3
McMourning (guild)
Arcanists
Tier1
Marcus, Ramos, Ironsides
Tier2
Collette, Kaeris, Rasputina
Tier3
Mei Feng
Neverborn
Tier1
Dreamer, Jakob Lynch, Pandora
Tier2
Collodi, Lillith, Zoraida
Tier3
Lucius (Neverborn)
Ressers
Tier1
Nicodem, Saemus, Tara
Tier2
McMourning, Yan Lo, Molly, Kirai
Outcasts
Tier1
Leveticus, Tara, Jack Daw
Tier2
Von Shill, Viktorias, Hamelin
Tier3
Miasaki (outcasts)
Gremlins
Tier1
Som'er, Wong, Ulix
Tier2
Ophelia, Mah, Zoraida
Tier3
Brewmaster
Ten Thunders
Tier1
Jakob Lynch, Miasaki, Yan Lo
Tier2
Mei Feng, Shen Long, McCabe
Tier3
Brewmaster
this is just based off my personal experiences, I really dont get all the mah hate, I think shes rediculously powerful.