Manchester Terrier
Credit: Tracy Morgan / Getty Images

Best for: Outdoorsy types who crave an equally game companion and can tolerate a little (or a lot) of yapping.

This adaptable, small dog was bred to hunt rodents, making it useful in rural and urban environments. Despite its businesslike efficiency and Doberman-esque appearance, it's actually a cuddly house pet who'll be as happy hanging out on your lap as it is tracking prey in your yard.