Absolutely Rickey Henderson belongs ahead of those guys, if we are looking at this in terms of Offensive Value. A guy with a .400+ OBP who is the greatest base stealer of all-time is going to deserve to be ranked way ahead of Clemente, who while he hit .319 for average, didn't have the OBP, didn't steal many bases and didn't make up for it with tremendous power. If the object of the game is to score runs, i.e. get on base and advance to home plate, Rickey Henderson is easily one of the top 20 hitters of all-time... I actually think an argument could be made to put Rickey closer to #10 or #11 rather than #20 A key stat with Henderson is Total Bases Plus Steals Plus Walks: Henderson had 4,588 Total Bases plus 2,190 Walks, plus 1406 Walks for a Complete Total of *8,184* Barry Bonds had 9,048 Hank Aaron had 8,498 Ty Cobb had 8,000 Babe Ruth had 7,978 Willie Mays had 7,868 Stan Musial had 7,811 As best I can tell, Henderson is #3 All-Time in Total Bases plus Walks plus Steals Henderson ranks 4th all-time in Times on Base behind Rose, Bonds, Cobb. You add in the Stolen Bases and he's ahead of all those guys except Bonds Someone like Pujols may have a credible argument to be ahead of Rickey, based on his .417 career OBP and 1.026 career OPS and 42 HR's per 162 games (!), however Pujols is "unproven" in terms of the All-Time greats, i.e. we don't know how steep Pujols' decline will be....