Probably the '27 Yankees, and not just because of the duo of Babe Ruth and Lou Gehrig. You had guys like Bob Meusel and Tony Lazzeri posting great averages and getting on base for the home run hitters. And the pitching staff was great all around; Waite Hoyte, Herb Pennock, and Urban Shocker all had great seasons. As for the best season from my Chicago Cubs, I'd probably have to go with the '29 Cubs. They had some greats like Rogers Hornsby and Hack Wilson. In fact, the '29 Cubs outfield is arguably the greatest 3-man unit in baseball history. The three (Riggs Stephenson, Kiki Cuyler, and Hack Wilson) combined for a .350 average, 71 homers and 371 RBIs.
"Today, I consider myself the luckiest man on the face of the earth." -Lou Gehrig