Kerry:
Good sport in school.
Bush:
Sucker punched another player.
Kerry:
Volunteered to serve his country, despite family links that could have gotten him softer duty. Went to Viet Nam.
Bush:
Used family links to get into National Guard.
Kerry:
Was a hero to many, including acting swiftly and decisively to save the life of one of his men. Every man who served under Kerry would trust him with their lives. Kerry also saved the life of a Republican member of Congress years later by performing heimlich maneuver.
Bush:
A.W.O.L. from National Guard. Failed to act swiftly and decisively when the USA was under attack.