What?
Madara was careful with Minato and waited till he was on a mission so he could use Obito and Rin... I dont show Minato > Madara indeed, yet it shows that Minato was the only one that could danger his goals, aka, recognized.
4th Raikage also said he hasnt seen someone stronger than Minato, etc. Minato has hype that puts him as strong as Madara or Hashirama. In fact, Obito was trained by Madara and Minato defeated him 4 moves.