Gil and Saber can easily solo this.
umm.. you said Gilgamesh was pwnt by Excalibur. How does that make Saber be able to beat Mihawk? Plus Saber wouldn't have even a 1% chance of beating Gil without Avalon. He only lost because he was surprised. Well atleast from what we know so far Mihawk doesn't have anything to defend against Excalibur. I think this is sort of a pointless thread to begin with since we barely know anything about Mihawk.