its more about the body typ than the cat/wolf/pig/ gater argument.
Catgirl think will be more petit so smaller pet to keep, and the Pig was planned to be but more chubby/round girl ((see spoiler and keep in mind 2d =/= 3D model )) due i asked what the plan for the pig was because it came bit out of nowhere.
But option 3 is losing the poll and 1-2 are baseline tied at around 41% of the votes ((last time i checked)) so no need to worry about it for now.
only thing i can say if you have like other animal that can have the chubby/bbw/voloptous body type we can recommand that.
Werewolf isnt the chubby typ