Who would win?
-Gilgamesh has an excellent Master for prana supply and he's much like he was in Fate/Zero(for the ones only knowning of Fate/ Stay Night, it means he's colder, a bit more serious and a bit better physically)
-Arcueid has her full power(thanks to Altrouge and Roa she lost it to 30%, but theorise now that she regained to full 100%)
-Both have some knownledge of each other by vaguely their abilities.
-They have a bit of time to prepare and to plan.
-No plot armor and plot-inducted stupidity, though their CIS still remains.
So let's discuss!