Jones is undefeated in his prime, dominated light heavyweight for over a decade, and just steamrolled heavyweight by submitting Ciryl Gane. GSP is a legend, but Jon's resume is untouchable.
Jon Jones is the GOAT: unbeaten at the top for over a decade, crushed legends, moved to heavyweight, and won the belt instantly. Nobody matches that résumé.
Jon Jones is the absolute GOAT. He slaughtered an entire generation of light heavyweights and then strolled into heavyweight to take the belt like it was nothing.
Jon Jones is the greatest today. He's wrecked legends in two divisions while GSP's glory days are over.