Labradors - especially brown labs - they are great, soft, cuddly creatures - and are equally happy curled up, fast asleep, or running round playing silly labrador games. We have a brown lab, and she is an absolute delight. Not that I am at all biased, of course.
We also have a labrador cross, who is a rescue dog (from the Dogs Trust - who I cannot praise highly enough) - we think she is lab-pointer cross, and she is a more highly strung dog - a bit of a neurotic bitch, if I am honest - but that is more to do with having been a breeding dog (she had at least 2 litters, apparently), and then being rehomed in an entirely unsuitable home and ending up in the rescue kennels.
She is a contact dog - she likes to be as close to you as she can possibly get - 37kg of dog is not the most suitable lap dog, in my opinion, but she doesn't always agree with this! She is needy but very loving. Like the brown lab, she is equally happy fast asleep or running like the wind - she really enjoys chasing seagulls on the beach.
They both love swimming and splashing - preferably in a muddy puddle.
Downsides - labradors are notoriously greedy, so you do have to be careful not to let them get overweight - and they do tend to be food thieves, given half a chance. They will eat practically anything - which makes choosing food for them very easy - but also means they can and do eat cow poo, horse poo, their own poo, and anything nasty and rotting they can find. If they do find something really smelly, they will either eat it or roll in it - or both.
Ddog2 (the lab-pointer cross) once found half a dead seal on the beach - it was very runny and rotten. She tried to drag it off the rocks to bring it home, and when she couldn't, she rolled in it instead. I have never smelled anything so terrible. Normally, if they need a bath, we take them upstairs, into the shower in our en suite because that is easiest - this time, I refused point blank to allow her into the house, and she was washed twice, in the garden - and there was still a bit of a smell, and she had a third bath in the shower!!