She's my favorite Pokemon, plus I have a feeling we'd be pretty good friends. I don't know if I'd necessarily want to catch her... we'd just travel together through the Sinnoh region and go on adventures, yay! :]
I would choose my favorite legendary, Articuno. I use it on my team and it is the only legendary I use. I don't feel guilty for using it; it's not uber or anything, plus I love ice pokemon, and it's kind of the mascot for Gen 1 for me.