Some of the most popular breeds of cats include the Persian, Maine Coon, Siamese, Ragdoll, and British Shorthair. These cats all have unique traits and characteristics. For example, Persian cats are known for their long, luxurious coats and sweet personalities. Maine Coons are known for their large size and intelligence. Siamese cats are known for their vocal tendencies and affectionate personalities. Ragdolls are known for their laid-back personalities and gorgeous coats. British Shorthairs are known for their easy going personalities and short, dense coats.