How many stars does each of the 3 top users with the most likes in their reviews have?
more likes mean this tip is more valuable; the most likes refers to MAX(likes); stars refers to users_average_stars
SELECT T2.user_average_stars FROM Tips AS T1 INNER JOIN Users AS T2 ON T1.user_id = T2.user_id GROUP BY T2.user_id ORDER BY SUM(T1.likes) DESC LIMIT 3