Richo is a very good contested marker, but as previously stated he marks TOO much on his chest and hardly ever takes a "ONE" grab mark.
Other handy marks include: Benny Gale and Paul Bulluss in the backline
Wayne Campbell is a very good mark for his size.
Michael Mitchell was just a freak who was cut down in his prime.
And who could forget Steven Jackson, Todd Breman, Ty Esler, Mark "Hulk" McQueen and Terry Keays.