Winner of most Australian Open men’s titles?

Question

Andre Agassi presently holds the record in the Open Era (since 1969) with four Australian Open titles to his name (1995, 2000, 2001, 2003) but Roger Federer already has three (before the completion of the 2010 tournament) and he’s not done yet. Australia’s Roy Emerson holds the record in the pre-Open Era, winning six titles in the 1960s.