To be honest, despite the bad looking Alolan forms, they have very good backstory to as and why they changed, so I don't think there were any bad Alolan forms (& I for sure am glad that the Persian is growing on me too).
I still want most of the ones fans have drew-- Alolan Gyarados being real Dragon-type, Alolan Arcanine being Water, Fighting-type Alakazam, Fire-type Weezing and the likes. Those were definitely good.