This may be the most curious case on this list so far. Why isn't this number more popular?
Honorable mention: Nobody, this number sucks
5. Jeff Keppinger (-0.2 WAR)
Kepp played for the team for 2 years, one of which was very good and one of which was very bad. He has played for 4 different teams in the last 4 years.
4. Gee Walker (0.5 WAR)
Walker played for the Reds from 1942 to 1945, the last stop on a 15 year career. He was an outfielder by trade, and spent his best years in Detroit. He was basically a journeyman by the time he got to the Reds.
3. Eddie Lukon (2.1 WAR)
Lukon is interesting because he started before Walker with #27, went to war, and came back to his old number in 1946. He wasn't too bad of a player, but he was a war hero.
2. Scott Rolen (7.7 WAR)
Rolen played for the team for 4 years, and despite the Reds being the 4th best WAR total in his career, he had a great contribution here. 2 All-Star appearances and a Gold Glove, if you need him. He's thinking of coaching, but we're probably the 4th choice on his list.
1. Jose Rijo (36.5 WAR)
Who else? Rijo came to the Reds in 1988 as he was just starting to hit his stride, and was a huge part of the Reds team until 1995. 1991 was his best year, as he went 15-4 with a 2.51 ERA, led the league in WHIP and finished 4th in the Cy Young.
Trivia: which 2 future Reds finished above Rijo (but didn't win) on the 1991 Cy Young ballot?