Galan spears Sesshomaru through the head in a speed blitz.
Esomark
Wow, I thought Sesshomaru fangirls as well as fanboys would be flaming me after that post. But yeah, Galan wins. He escaped Merlin's teleportation spell which has a radius of several miles with a jump so he'll skewer Sesshomaru before he can swing his Bakusaiga.