What is the best Fire Stick to purchase?

Could you please provide some insights on the most suitable Fire Stick to purchase? What are the key factors one should consider when making such a decision? Are there any specific models that stand out in terms of features, performance, or user-friendliness? Is there a specific version that caters to different types of users, whether they are heavy streamers, casual viewers, or tech-savvy individuals? Additionally, what are the main differences between the various Fire Stick options, and how do they compare in terms of price-to-performance ratio? Thank you for your input.