I would agree I think goldens would be better, I think they are smart and generally laid back .... and therefore owners are more likely to do activities like obedience with them instead of more active activities. Labs are just as capable but owners just chose not to do obedience as much .... I haven't done a trial since our CD, but definitely more goldens than labs at trials.
Zola was 1 when she got her CD would have pursued it more but she went the reactive route and I cannot do out of sight downs and sits with a reactive dog.
We do agility as our main sport, and she excels at that ... almost MACH2 and she is a little over 3 years old now.