Funny but I've always heard and its been my experience that mutt's have health problems and don't live as long. My family has had a few mutts and none have lived past 8 or 9 (large dogs) while our German Shepards have gone on to 11, 13 and 14 years. The one that died at 11 was hit by a car when it was 7 and was never teh same after that.
As for Goldens: best dog ever. They seem to keep the weight off better than labs, and they don't shed that fine bristle hair everywhere like a lab. I have a short-haired golden and he doesn't shed much at all. I've also heard that labs can have a mean streak in them, while I've never heard of a Golden that attacked someone. Even when I was threatened once, my golden just got between me and hte attacker and showed his teeth. Very loyal dog.
If you do get a golden, be prepared for HIGH ENERGY the first 4-6 years. Also be prepared for a dog that loves pools/lakes, loves to give kisses, and will follow you everywhere!
My golden knows the command "Hug". If I get down on my knees and say "hug", he'll put his pays around my neck and start giving me kisses. Never on any other command does he do this, but I never taught him this command either! Maybe he's seen my family giving hugs or something?
Great dog!
Other great breeds: Labs (ya, they're cool dogs!!), Visla (pronounced vee-sla or however you spell it??)
Also, another good breed is hte Basenji. My girlfriend has one and I love it!! V-E-R-Y smart dog!!! African hunting dog...it N-E-V-E-R barks!! It also isn't very 'clingy'. Another words, it has some characteristics of a cat and can be happy by itself, but also loves to be around people. It rarely sheds, it doesn't bark, and it only gets to be about 25-35lbs more or less. very cute dog too!!!