* Most litters per year: Cats typically have more litters per year than dogs. Cats can have multiple litters in a year, while dogs usually only have one or two.
* Most babies per litter: This varies widely between breeds, but dogs tend to have larger litters than cats. Some dog breeds can have 10-12 puppies in a litter, while cats usually have 4-6 kittens.
So, the answer is:
* Cats have the potential to have more litters per year.
* Dogs tend to have more babies per litter.
It's important to remember that these are just general trends. There are many factors that can affect the number of babies an animal has, including breed, age, and health.