As of July 2014, Sebastian Vettel is the current Formula One World Champion driver, having won the championship 4 years in a row: in 2010, 2011, 2012 and 2013.
The defending Formula One World Champion heading into the 2012 season is Sebastien Vettel of the Red Bull Racingchassis.
Big show is the world heavyweight champion
CM Punk is the WWE Champion
There was no World Cup in 2012.
The 2011-2012 World Ski Jump World Champion is Anders Bardal.
The 2012 and 2013 World Professional Snooker champion is Ronnie O'Sullivan.
Big Show is the current WWE World Heavyweight Champion as of December 2012. He defeated former world heavyweight champion, Sheamus, on the 28th October at Hell in a Cell
As of january 18th 2012, daniel bryan is the current world heavyweight champion. CM Punk is the current wwe champion.
John Higgins is the current World Snooker champion in May 2011. February 2012 it is John Higgins.
Sheamus is the World Heavyweight Champion, CM Punk is WWE Champion, Santino Marella is the United States Champion, Big Show is the Intercontinental Champion