The most widely favored chihuahua breed is the short-haired chihuahua. These dogs are compact, energetic, and loyal. Their small size makes them popular as lap dogs, and they are easy to care for due to their short coat. They also come in a variety of colors, making them a popular choice for owners who want a dog that stands out. While long-haired chihuahuas are also popular, they require more grooming and can be more high-maintenance. Ultimately, the decision of which chihuahua breed to choose comes down to personal preference and lifestyle.