Who is the greatest champion all time? - Team or Individual

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The Chicago Bulls that won 70 out of 82 games and won the championship maybe the greatest, most dominant team in any league ever. The '72 Dolphins that went undefeated probably accomplished something we may never see again, but they were not a dominant team. We may be witnessing one of the greatest indivual careersever in Roger Federer's dominance of mens tennis. I'm sure someone will jog my memory of something I forgot.