Here is a comparison of the intelligence of golden retrievers and spaniels:
* Golden retrievers: Golden retrievers are ranked 4th out of 138 breeds in terms of intelligence, according to Stanley Coren's book "The Intelligence of Dogs." They are known for their obedience, eagerness to please, and ability to learn new commands quickly. Golden retrievers are also very good at problem-solving and can often figure out how to get what they want.
* Spaniels: Spaniels are ranked 23rd out of 138 breeds in terms of intelligence, according to Coren's book. They are known for their independence, curiosity, and love of exploring. Spaniels are also very good at hunting and retrieving, and they have a strong sense of smell.
Overall, golden retrievers are generally considered to be more intelligent than spaniels, but both breeds can be highly intelligent and trainable with the right training.