Greg Louganis

Imagine arguing that Greg Louganis isn't the top gun in the 'Greatest American Olympians of All Time.' I mean, the man turned diving into a spectator sport just by flipping backward with less splash than a pebble! Fans literally lose their minds trying to mimic his sleek style at their backyard pools, only to end up splashing like a belly-flopped seal. Louganis has more grace in his pinky toe than most have in their whole body. Picking anyone else just feels like a betrayal to diving itself.