Its either Goku or Saitama, though Goku has an advantage because of ki attacks
Nobody can realistically have an advantage over Saitama until ONE writes a scene where he is legitimately defeated. Goku has been defeated more than once.
I cannot for the life of me imagine why Joey Wheeler was included in this list. XD
He survived his soul being immolated by the Winged Dragon of Ra, an attack that by all accounts should have ended the duel killing him. But because the anime came before the card game proper, it just... didn't.
