Solid Snake is the hero of Metal Gear/Metal Gear Solid. Solidus Snake is the villain of Metal Gear Solid 2. Both have strong determination and are hardened warriors. However, Solidus has the benefits of a powered exoskeleton that gives him extra strength and reflexes. He also has a jet-like acellerator that allows him to travel great distances in a very short time. On top of that, he can block bullets with his blades.

Solidus wins.