In honour of this week’s release of the Sports Illustrated Swimsuit Issue, we have an epic edition of the Man Lab Showdown for you. In one corner is 2010 SI Swimsuit cover model Brooklyn Decker who is such a big name in the modelling world that she’s parlayed it into an acting career. In the other corner is 2012 SI Swimsuit cover girl Kate Upton who has taken the world by storm over the last twelve months.

More photos and the poll after the jump.