I don't know how you can rank Cal Ripken breaking the consecutive games streak as the greatest moment in baseball history. Unless you're from Baltimore. Then I would sort of understand. Numbers 2 and 3 are way more important to the game than Ripken's feat.
if Gibson's homerun is on this list then how do you not put Joe Carter's World Series clinching walk off homerun from the 93 World Series??? No love for the Blue Jays, if he had done that in a Yankees or Red Sox uniform it would be "one of the greatest moments in American sports history"
"The giants win the pennant, the giants win the pennant!"