I have many from the four major sports, including many of the certified autographed cards that were inserted in the packs. Not many stars from the past 30 years I don't have. I do need a good Jordan however. I live 15 minutes from Muhammad Ali and have met him on several occations-very nice person.
Nicest people I have met - Jim Brown (shocking), Banks, Kaline, Kell, Feller, B Robinson, Payton, LaRussa, Ryan, Ripken, Aaron, Nitschke, FloJo.
Biggest pricks - Rose, Carlton, Mays, E James, Winfield, Strawberry, K Gibson, R Henderson, Canseco, Alan Wiggins (84 Padres 2nd baseman - told me he don't sign for no f'ing whiteys, later died of AIDS).