What is the 1st best pet?

Could you elaborate on the criteria for determining the "1st best pet"? Is it based on popularity, ease of care, compatibility with lifestyle, or perhaps a combination of factors? Understanding the methodology behind such a ranking is crucial. Additionally, what types of pets are we considering? Domestic animals like dogs, cats, hamsters, or perhaps even exotic creatures such as snakes or lizards? The range of possibilities is vast, and a clear definition of the parameters would greatly assist in providing an accurate answer. Could you please clarify these points so that we can delve deeper into the question of what constitutes the 1st best pet?