Minato>A
He even stated it in the latest anime
He also said that he thought that Minato was the strongest ninja ever since he versed kyuubi and tobi
Speed wise: Minato wins
Intellect: Minato wins
Strength: A wins

BTW rasengan isn't Minato's only offensive jutsu he is noted as a hokage meaning that he knows way more than 3 jutsu's