What is the name of the player who has been chosen the most times for 'Man of the Series'?
name of the player refers to Player_Name; most times for 'Man of the Series' refers to max(count(Man_of_the_Match))
SELECT T3.Player_Name FROM Season AS T1 INNER JOIN Match AS T2 ON T1.Man_of_the_Series = T2.Man_of_the_Match INNER JOIN Player AS T3 ON T2.Man_of_the_Match = T3.Player_Id GROUP BY T3.Player_Name ORDER BY COUNT(T1.Man_of_the_Series) DESC LIMIT 1