I like all animals and have had great success with the pets I have had over the years.
The easiest pet to care for was a snake... the most loyal a dog... the most playful was a 5 year old neutered cat who even walked on a leash in public...
The most interesting though was a fox I raised up from a cub. They giggle like a hyena, whine like a pup, and have eyes like a cat. Oh, and they literally climb the walls like a cat.
"The weakest soul, knowing its own weakness, and believing this truth that strength can only be developed by effort and practice, will, thus believing, at once begin to exert itself, and, adding effort to effort, patience to patience, and strength to strength, will never cease to develop, and will at last grow divinely strong."
- James Allen