1. Isaac Caldiero and Geoff Britten are the "First American Ninja Warriors" -- depending on who you ask
No other moment in American Ninja Warrior history sparked as much emotion as the Season 7 Vegas Finale. Fans were angered and confused by the rules, ecstatic over Geoff and Isaac's accomplishments, and heartbroken with the all-or-nothing final results.
In a controversial finish that still divides fans nearly a year later, Isaac and Geoff competed for the $1 million prize, which, ultimately, only one of them could win. Geoff climbed the 75ft rope first and, remarkably, managed to do it under the 30-second limit given, earning him the title of "First American Ninja Warrior" in many people's eyes. Isaac followed and was able to beat Geoff's time by several seconds, winning the cash prize and making him the "First American Ninja Warrior" to many others.