Just realised, that I never replied here...
I am a cat person, so of course I like Snowballs the most, except that moment, when Snowball V became Smokey and disappointed Lisa. Such an intelligent cat could be more faithful.
Always wondered, how Simpsons can have so much animals the same time: dog, cat, fishes and often someone else in addition, animal keeping takes some time and money, but in Simpsons it looks like they grow and live without much care, and only in danger situations Simpsons are doing something for them.
From all other, non-constant pets I like Pinchy the lobster and Homer's ravens. That's fun to see, how he using his pets for his own purposes at first, then become fond of them and treating them better than Marge, and after all backing to his normal selfish condition, remembering about his own purposes once again
