Vaporeon. My little water dog has gotten me out of every sticky situation i've ever encountered. its always on my A team.
http://fc03.deviantart.net/fs50/i/2009/295/a/7/Realstic_Vaporeon_by_Leashe.jpg
why? because i can. I'd have one of each. The common would be my pet, the Eastern would be the kid's pet, the European my show dog, and the American my guard dog (and secretly my baby who would be good with the kids). Yeah bring it how intruders. You're screwed if its raining, you'd never see it coming.