Lugia and Giratina are probably my favorite legendary pokemon. As for regular pokemon, Ampharos and Ariados are my favorite. I had their cards, I had them in game, they were the only Pokemon I leved leveled up to 99!
My favourite is squirtle. He is just so cute and innocent and was one of the first pokemon I was ever introduced to. I will always pick him over any starters I am given.
I love the Houndoom, looks pretty damn badass for a Pokemon. Houndour is just as badass, even tho it looks like a little puppy. They seems pretty great pets to own, since I've always loved the dark type pokemon.
I'm a rather avid fan of Evee, but currently my favorite all time Pokemon is Abra; not it's evolutions, just Abra itself. Not much of a reason other than I think it's adorable and like having one.
I'm very fond of Gliscor. I mean, there mere concept is so cool! It's a two meters tall flying scorpion, that's hardly cliché. Besides, it has a curious typing, excellent abilities and a nice Attack/Speed stat, and it fits my teams perfectly.
I can honestly never answer this question! I have so many, I can't decide. I love Wailord and Torkoal and Altaria and Lunatone, and the list goes on!