With only a year separating the Mayweather/Mosley/Pacman fights what is the defining moment for you?

For me it is MAY 2010 Mosley scrapped for 10 rounds with Mayweather, knocking Mayweather down and never getting hurt by Mayweather, but outboxed. MAY 2011 Mosley gets hit by Pac, looks bewildered from the 3rd and elects to protect his chin for the last 7 rounds.....