No matter what, Sosa deserves to be on that list. For the best part of the 90s, Sammy Sosa WAS the Cubs. He was the face of MLB in Latin American countries, he electrified the country with the home run race in 1998, and he was a powerhouse in the lineup for almost a decade. Despite the questions surrounding his stats, and the bad taste he left in the Cubs' organization's mouth in 2003, to leave him off this list does a disservice to a generation of fans who identify Sosa with the Cubs, especially since four of the five players are from the 1969 team. Of that group, the one person I would leave off is Fergie. While his W/L totals, innings pitched, ERA and almost all stats were better when he was with the Cubs, his career was split almost evenly between the Cubs (9 1/2 seasons) and Philadelphia, Texas and Boston (9 1/2 seasons total). If we're going for greatest Cub ever, is should be someone who was a part of the team for the longest period of time. All that said, Ernie Banks is my vote. He was a great ambassador for the game, one of the leading black athletes of the era, had monster stats in a pitcher's era and is overall the best cheerleader the Cubs could hope for.