If you could have any Pokémon as a pet, what, and why?

Pikachu - Its just cute! ^^
Mew - Turns to any Pokemon you want.
Celebi - I wanna time travel!

Squirtle,Charizard,Growlithe,Ninetales,Ditto and Eevee!

I would love a pet Litwick or Rotom.

Riolu because it's one of my favourite Pokemon.

Probably a Zorua or a Manaphy.

Meowth. Because Pay Day. :D

Seriously, I'd like an Arcanine. All the benefits of having a dog plus fire? DO WANT.

As much as I like grass-types, I prefer to have an Eeveelution rather than a grass-type as a pet. I'd like an Umbreon or a Jolteon as a pet. They're both cuddly and cute and they'd be totally energetic, like I am. :D

Flygon, just because...Flygon.
When I first laid my eyes on this cross between dragon and bug I fell in love with it. It's so adorable and kick-A at the same time.
or
Arceus and just roll around having it judge everyone and everything. XD
or
Feraligatr because he's awesome. X3

In terms of what can and can't be a pet...... hmmmmm..
So there goes quite a few legendaries,
I'd choose a Ditto, as mentioned earlier, transform FTW

Umbreon, no need to explain :)

I'd love an Elgyem or a Beheeyem. Erasing people's memories? Sign me up.

Who wouldn't love to have a freaking mechanical beast like Metagross as a pet?

Well, let's see. A lot of the Pokemon that I consider to be the coolest would be too big to keep easily as a pet. It'd also be hard to keep a fire-type where I live, so, yeah. Probably... one of the Eeveelutions. A Leafeon would probably feel most at home where I live, or maybe a Jolteon or Vaporeon. Well, I'd go with Eevee and let it evolve into whatever it wants. Leafeon is convenient as a pet, though, because it's friendly and you never have to feed it. Having a Squirtle or an Oshawott would also be cool... or even a Pikachu.

Hmn, Sneasel could be fun. Mischivious and snarky enouth that i'd never be bored again, and, if anyone messed with me.... :P Weavile too though it might be a bit harder to control lol

i'd love to have a Glaceon
it's so cute :3