170 Votes in Poll
We don't know much about how far Aoko scales but I'd say Aoko wins. Her normal magecraft won't practically or at all affect Medea, while Medea's is very deadly against non Servants and the like. But I think that Aoko's martial prowess and specially the 5th magic will turn the battle in her favor.
But yeah, Medea is a deadly opponent for all current day humans.
Aoko should win. Medea is a monster to be messed with but when you facing someone who can speed up the heat death of the universe or mess with time itself, it only becomes a matter of time when defeat comes
In Mahoyo Touko clearly states that, despite a huge difference in ability as mages (in that case to her advantage), dealing with true magic is a completely different matter. It is implied that true magic is on a whole another scale, so I'd give it to Aoko, especially after seeing what she does in the VN.
Yeah but magecraft from the Age of the Gods was at times (depending on the magecraft) very close to True Magic and sometimes on par with it, so the very best mages from back then could potentially be able to counter it.. Granted, a power like that is very rare, but it isn't impossible (like with Solomon). In most cases True Magic would still be more powerful, but the other mage would usually have way more variety of spells, knowledge and such, which could turn the battle in their favor (since True Magic is usually one-trick like style, compatibility could matter a lot, for worse and better).
But I think Medea, even though she should be very powerful and they definitely didn't do justice to her in F/SN (I mean, even Nasu practically acknowledged it), lacks the power to win vs Aoko's True Magic or Zelretch's.
What do you think?