We loved our last dog, but he was something of a problem. Aggressive. Very aggressive. To the point where we couldn’t have guests over (or else we’d have to keep him in the basement, where he’d cry the entire time). Although he was fine with the family, he was NOT with others. He bit people. We were very nervous about him, and wouldn’t let him mix with others. As much as we loved him, he put a real crimp in our lifestyle, and we decided after he died that we’d buy our next dog for temperament, first and foremost.
After researching, we decided we’d get either a lab or a golden retriever, and our research also indicated a reputable breeder was the best way to go. Less health issues. More care taken to breed dogs consistent with the breed’s characteristics (in this case, temperament being the crucial one). We ended up with a blond lab, Sammy, who is the sweetest dog in the world, just as labs are advertised. He loves everyone. We have frequent parties now, and Sammy mixes with everybody. It really changed our lives, honestly.
If I had to do it again (I guess we will someday), I would in a second.