This is almost a tragic match as Gigan did something no other Kaiju has ever done. He made it all the way to the top 10% of the blog’s fighting force. He’s a very powerful Kaiju, but at the same time he can’t hope to defeat Lightning. Lightning has defeated her share of gods and monsters and even has one as a personal summon in the form of Odin. Odin can take on Gigan in a pretty good fight and even without him Lightning essentially became a god (Or a messenger of the gods) by the end of the series with power that was increased for this task. Gigan will have a hard time hitting her and Lightning’s durability is enough to keep her fighting until she gets the victory. Lightning wins.