Which is the better buy between these two pet stocks?Pets are bigger business than ever.Pet adoptions spiked during the pandemic, and spending on pets has continued thanks to trends like the humanization of pets, with more Americans treating their pets like children.Two companies that capitalized on that trend are Chewy (CHWY -0.39%) and Freshpet (FRPT 2.11%). Both stocks have generally delivered strong growth but offer different ways to get exposure to the pet industry. Let's size up both of them in order ...