Suggested by Anonymous Destoroyah is a powerful Kaiju to be sure and he really made Godzilla get close to death. That being said, Epsilon has dealt with powerful maverick hunters like X and Zero in the past. I’m confident that he would be able to block Destoroyah’s attacks the way that he blocked X’s big energy blast. Then he can overwhelm Destoroyah with speed and power. No Kaiju could survive such an energy barrage. Epsilon wins.