I just had an idea that I think lots of people would love. The ability to mark on sylesti as your partner/favourite sylesti to appear on your profile page instead of/ as well as your active pet. After all, your favourite pet might not be tough enough to be active (like for players who mostly do breeding and not adventuring)

I would also like to add on something people have suggested before. The ability to give your pets a profile (description, backstory whatever)
Just a text box on the pets profile where you can write something you know?