Springer spaniel, no question about it. You get bags of energy all day, you spend most of your time in rivers or bushes or muddy puddles, and your owner doesn't expect you to show much in the way of intelligence. All they expect from you is affection and love of a good time.

A labrador would be nice, but they're sometimes expected to be responsible and look after people. No-one expects a spaniel to be responsible.

Graham.