The San Diego Padres appeared in two World Series without winning a title.
Through the 2008 season, that is the New York Yankees who have played in 39 World Series, winning 26 and losing 13.
Yogi Berra played in 14 World Series with the Yankees winning 10.
The most consecutive World Series appearances without a win is 3 by the 1907-1909 Detroit Tigers and 1911-1913 New York Giants.
The MLB team that has won the 2nd most World Series is the St. Louis Cardinals. They have won 11 times and lost the World Series 7 times. But, the team that has won the MOST World Series is the New York Yankees. They have won 27 World Series and lost 13 World Series.
The New York Yankees francjise played in 40 World Series, winning 27, and the LA Dodgers franchise appeared in 18 World Series, winning 6.
Yogi Berra ... Berra played in 14 World Series with the Yankees winning 10 total Series and 49 total games.
The New York Yankees have played in the most World Series games.