Christian McCaffrey or Alvin Kamara ???

AK and CM are comparable and among the best RBs to play in the NFL in the past 10 years, but best of all time? Are you kidding me? Go watch some film of Jim Brown, Walter Payton, Gayle Sayers, LT, Barry Sanders, Eric Dickerson, Earl Campbell, Marshall Faulk, Tony Dorsett, Marcus Allen, even John Riggins and Jim Taylor, before making such a pronouncement.