From a genetic perspective, hybrids always have an advantage over purebreds. They can combine different genes together to become stronger. They will aggregate the advantages of different breeds, as well as the disadvantages, each occupying 1/2. But since the puppies are already born, it's easy to judge, choose the ones you think are excellent. For purebred dogs, there is no room for choice, they're all the same. In a group of zebras of the same breed, you might not even be able to tell which one is which.
Dog enthusiasts can choose purebred dogs or hybrid dogs (i.e., both parents are purebred, but of different breeds), or mongrel dogs (one or both parents are hybrid or mongrel dogs). Price is likely to be a major influencing factor because, in general, purebred dogs are much more expensive than other types of dogs. It is worth noting that we believe that one should not assume that purebred dogs are necessarily better than hybrid or mongrel dogs. In fact, when it comes to health, the opposite may be true. Mongrel dogs, while having the advantages of being inexpensive, resistant to diseases, and easy to raise, their temperament and appearance when grown up are harder to predict. If you choose a mongrel puppy, be especially careful, as it may grow much larger than you expect; on the contrary, if it's a purebred dog, the adult size is clearly written in its breed standard, and can be predicted. Many mongrel puppies are similar in size when they are born, but you can predict the adult size by comparing the size of their paws. Puppies with larger paws tend to be relatively larger when they grow up.