Oh cmon those are such shitty match ups, I'll even tell you who will win.
1- Chuck norris, cause he's just gonna roundhouse kick him back to FF7 where he belongs.
2- OLD Snake will definately rape sam fisher. Let's compare gadgets shall we: Fishers got night vision, Thermal vision, and The electricity vision(whatever), His weapons don't count.(Sticky shocker won't do shit in this situation). Now SNAKE has his suit which disguises his thermal signature and his body,(Complete invisibility from Fisher) Next he'll just shoot a tranq in Fisher's ass and they'll call it a day. :D
3- What kind off cheap ass overkill match up is this. Kratos wins hands down. If you question why, then all Kratos has to do to win is(From the first game) Army of Hades or (From the second game) Shoot his dumbass with the bow.
2) Sam Fisher has terrible hand to hand skills, and isn't one to take many bullets, and a airfoil round isn't enough to take down Solid Snake. Snake, on the other hand, has been able to fight on par with any character in Super Smash Bros. Brawl, which qualifies him as superior.
3) Master Chief May be from the future and may fight with advanced weapons, but Kratos, however, defeated the GOD OF WAR, which must be far too much for the Master Chief to handle, even with a plasma sword.