They don't have FTG tags on each other before the battle. I'd like to see your thoughts below and explain why Minato or Tobi would win, don't just say a name
Better chakra based on feats? Thanks to KCM cloak. Tobirama has comparable chakra to base Hashirama, who dwarfs Minato's chakra. Minato has no element yet, so this is an even match.