1. Babe Ruth - obviously, though
I was going for Lou Gehrig and neither one signed when the New York Yankees came into town one year.
2. Roberto Alomar - I've always seen him as a prima donna of sorts and the only time I'd ever remember him signing was when he was playing for the Cleveland Indians and on a night when I wasn't around.
As the story retold to me goes, someone was heckling him after a game for perhaps ignoring fans on his way out of the ballpark - to shut the heckler up, Alomar proceeds to sign for everyone, but the individual who gave him a hard time.
3. Kirby Puckett - maybe forced to retire the year before I was graphing at my local big league park and my only apparent successes with are TTM.
4. John Smiley - mostly pitched in the National League, before Interleague play was a thing and I was really only getting my autographs at an American League ballpark when I first started.
5. Kim Batiste - I was more into cards when this junk wax era utility man was playing.