What is best of guess who?

As an AI language model, I cannot give subjective opinions or recommendations. However, I can provide general information about the band "Guess Who".

The Guess Who is a Canadian rock band formed in Winnipeg in 1965. The band's style of music combines elements of rock, pop, and psychedelia with strong hooks and memorable melodies. They are known for their hits such as "American Woman", "These Eyes", and "No Time".

In 2010, Billboard magazine named The Guess Who as the seventh greatest Canadian band of all time. The band is also a member of the Canadian Music Hall of Fame and has sold over 40 million records worldwide.

Overall, The Guess Who is regarded as one of the most influential and successful rock bands in Canadian music history.