Minato hit Tobi once, so Minato defeated him? If they would have continued, Tobi could won. The same technique won't work again.
You are clearly a Sasuke fanboy, by the way Minato is not my favourite character Itachi is.
Minato damage Madara's arm to the point he retreated how is that not being defeated not to mention Minato had to deal with the Kyuubi.
Ems from what we know only grants the user to not go blind prove to me were it gives the user some super massive power up maybe thats why Madara does not use it that much as it puts to much strain on the body.
Other than Ems what does Sasuke have,
Fire techniques easily dodged.
Chidori the technique that Minato himself found a weakness in.
Not much is known about Minato except FTG, Rasengan, sealing techniques and being a genius however we know most to all of Sasuke techniques due to him being one of the main characters.
So in my opinion and being honest Minato>Sasuke
Anyone who says Sasuke is better because Ems pwns I say to you people GTFO:flaw: