First_Tsurugi06
Video Game Engine of War
In all honesty, it's not quite powerful so much as brutally badass, but Jack is definately a league above ordinary humans (i.e. RE protagonists). While not nearly as big as the Colossus of Rhodes, Jack managed to drop-kick a twenty-foot Frankenstein off his feet into a giant electric chair, swung a giant spiked ball & chain multiple times into an equally large thug's face, he regularly tosses victims several yards, deflected bullets (possibly slow ones though) and has a punch that at its best sent his opponent (the Death Watch champ) into an audience in a bloody pulp.
That's to name his best strength feats. In terms of agility, he took out six gunmen who were surrounding him with his chainsaw (though they were arguably off-guard for a moment), shows several quick jumps across decent distances (a couple yards at best), and is trained in, according to Black Baron's description, "all kinds o' forms of kickin' ass".
If Jack and Kratos met, they'd be fast friends.