I have an American purebred 14 year old Golden. She is the finest human being I know

This dog has more dignity and compassion than 99% of two legged people. They are among the smartest breeds, ranked I think 4th in intelligence in the dog world. They are gentle souls but playful and athletic being bred as a hunting dog originally.
Goldens adapt to whatever kind of household that adopts them - they are the dog of choice to be guidedogs for the blind, there are several programs which bring goldens to the elderly in nursing homes on a weekly basis. That's because they are so gentle and well behaved. While they appreciate and need exercise it doesn't have to be a high speed intense workout - a nice walk suits them fine. Though if they wind up with a young family with kids and lots of tumult they are happy with that kind of lifestyle. Basically they are happy campers with everything.
If you're lucky enough to have your Golden live a long life be prepared for some major vet bills in their last years. I'm in for about $3,000 in the last year and a half. Their hips go on them, all of them if they reach a certain age - my dog Shredder's are shot, I carry the 85 pounds up two flights of stairs at least 5 times a day. She enjoys the ride. According to the vet she is not in pain, she just can't get up that easily or walk very fast, or climb stairs.
They rule - I think they are the best looking dog but that's subjective. If I get another dog it would definitely be a Golden again or a mutt - mutts are great dogs usually.
There are two kinds of Goldens - an English an American - the English have blondish hair and are stockier, the American Golden is more red brown.
NEVER get an Irish Setter, they are INSANE. It's the only breed I tell people to avoid. Black and Chocolate Labs are also great but in my experience they are less human-like and demand more exercise than Goldens.