MASTER CHIEF
-Superior Jumping
-Resistant to falling damage
-360 degree motion sensor (Can be negated by a chaff grenade)-Improved strength
-Personal shields (Can be negated by a chaff grenade)
-Inferior weaponry--can carry up to three guns and a handful of grenades
-Invisibility power-up (Can be negated by a chaff grenade)
-Cortana for information and technical assistance(Can be negated by a chaff grenade)
-Inferior HP (Can be killed by one sniper bullet to the head or well-placed explosive)
-Superior skill with a sniper rifle (always stead)
SOLID SNAKE
-Inferior Jumping
-Not as resistant to falling damage
-Depending on the game/difficulty, Snake may have a small map that identifies all enemies and the direction in which they face
-Can heal lost HP faster than the Chief's shields can recharge if rations are on-hand
-Can carry a superior amount of firepower, gear, equipment
-Stealth camo and an Invisibility upgrade
-CODEC and the Mark 2 Rex for information and technical assistance
-Superior HP (Can survive multiple head shots by the sniper rifle and endure a number of explosions)
-Inferior skill with the sniper rifle (Requires meds to keep steady aim)
Snake has the edge in a fight.