Here are some sample responses I came up with....
Small Town:
I would say that living in a small town is better because, there is less population which means not as much pollution. However there are less sources like stores that contain products and food. There's less of a variety in a small town but, it's safer to live in.
Big Town:
I would say that living in a bigger town is better because, there is more of a variety like stores that includes hobbies, food, resources. However, living in bigger cites can be dangerous due to population and pollution. There are more activities to do in bigger towns, and more ways to have fun.