Inspired by the "which would you rather " thread.
If you could have a Pokemon as a pet which would you choose. Keep in mind all the variables that exist in real life. For example, and Onix would be kick ass, but where you keep it? A Snorlax would be sweet, but think of the food bill to keep the thing fed. If you happen to live on a huge farm, a Rapidash would be kind of cool, but certainly not if you live in a condo.
I think I might choose a Growlithe. It is like a dog, isn't huge, and doesn't have any open flame that would burn me if I played with it (unlike a Charmander).