Both 'best' and 'most' are commonly used.
Does "Which do you like most" make sense instead of "best"?
le10Which of the five rectangles do you like best? Most people choose E. Do you know why?
People feel E is well-balanced and the most pleasing to the eye.
Both 'best' and 'most' are commonly used.
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What are the options? I agree with 5jj that both are possible, but what are the others?