The "best" season of Survivor is subjective and varies from person to person. However, there are several seasons that are often cited as the most popular and widely regarded as the best by both fans and critics. Here are a few examples:

1. Survivor: Heroes vs. Villains (Season 20): This season featured 20 returning players divided into two tribes of heroes and villains. It is widely regarded as one of the best seasons of Survivor due to its strong cast, epic challenges, and numerous blindsides.

2. Survivor: Micronesia - Fans vs. Favorites (Season 16): In this season, 10 returning players competed against 10 superfans of the show. It is often praised for its strong strategic gameplay, shocking eliminations, and memorable cast.

3. Survivor: Cagayan (Season 28): This season featured a unique twist where players were divided into three tribes based on their perceived level of intelligence. It is known for its diverse cast, unpredictable gameplay, and satisfying winner.

4. Survivor: Borneo (Season 1): This is the first season of Survivor and set the template for all subsequent seasons. It is often cited as a classic season due to its pioneering format, memorable cast, and iconic moments.

5. Survivor: Winners at War (Season 40): In this season, 20 former winners of the show competed for a $2 million prize. It is known for its epic challenges, emotional moments, and strong gameplay.

Of course, these are just a few examples, and there are many other seasons of Survivor that fans and critics consider to be among the best. Ultimately, the "best" season of Survivor is a matter of personal preference and can vary depending on factors such as the cast, the twists, and the overall gameplay.