River Tam (Firefly/Serenity) after single-handedly butchering an entire army of Reavers.

Sora (Kingdom Hearts) can handle an entire army of 1000 Heartless with little effort.

Goku (Dragonball) single-handedly defeated the Red Ribbon Army as a child. Ever since then, he has increased in both strength and power. His skills, Ki-based abilities, and Super Saiyans transformation allowed him to overcome the strongest of opponents throughout his life.

Rob Lucci (One Piece) is physically one of the strongest characters of the series. At the of thirteen, he killed over 500 soldiers and a crew of pirates single-handedly. And thanks to his training in the Rokushiki and Devil's fruit ability of Neko Neko no Mi: Model Leopard, his great speed, strength, reflexes, and durability were even enough to bring Monkey D. Luffy to his knees.

Kizaru (One Piece) single-handedly captured 500 pirates during his attack on Sabaody Archipelago.

Multiple Man (Marvel) is literally a one-man army.

With his expertise in weaponry, combat skills, and armed with his magic sword, Jack (Samurai Jack) is able to take on giant monsters, hundreds of robot destroyer drones, supernatural creatures, and even face off against Aku himself.

As The Fastest Thing Alive, Sonic (Sonic The Hedgehog) is well known for using his speed while in ball form to combat hundreds of Dr. Eggman's robots as his speed in his ball form is strong enough to break or cut through their metallic armor. Outside of his speed, he possesses great physical combat skills despite having little to no training in martial arts as seen when he faced off against the Gizoid, Emerl, who possessed all of the abilties of him and his allies.

By carrying the Spirit of the Hero, armed with his Master Sword, bearing the Triforce of Courage and mastery and possession of multiple weapons, gadgets, and magical items, Link (Legend of Zelda) is able to overcome countless forces of evil such as monsters, demons, and the undead.

Possessing speed, strength, endurance,his traditional X-buster, and his limitless potential, X (Mega Man X series) is capable of taking on numerous mavericks,mechaniloids, and even Sigma however strong they may be.

As shown in the past, present and future, Zero (Mega Man X, Zero, and ZX series) has shown to be strong enough to take on an army of mavericks single handedly.

Asura (Asura's Wrath) possesses speed, strength, durability, and stamina far beyond anything one could call human. The greatest assets to his abilities: his Mantra affinity, Wrath, allows him to increase his power to the point where he able to destroy entire fleets, The Gohma: Vlitra, and even Chakravartin The Creator himself.

Batman (DC Comics) is well know for using his intelligence, gadget expertise, detective skills, athletic prowess, and strong force of will take over come and army of foes and even super-powered beings.

Moneky D. Luffy, Roronoa Zoro, and Sanji (One Piece) are the three strongest members of the Straw Hat Pirates. They are capable of defeating an army of pirates, marine soldiers, giant monsters, and are able to destroy three Pacifistas when it took the entire crew at their best to only defeat one two years ago.

Afro (Afro Samurai) is an incredibly talented swordsman. He is strong enough to cut through multiple thugs and warriors quickly and effortlessly.

Kenshin (Rurouni Kenshin) the battosai can dispatch several opponents with little effort only with his sheath.

Megas is one machine army capable of destroying several alien robots (Megas XLR).

Kratos (God of War series) is one of the best examples of this ability. He has shown impressive feats of strength and magic in order to defeat hundreds of foes, deities, and even the mighty Zeus.

Much like his rival,Goku, Vegeta (Dragonball series) is a very powerful Saiyan warrior. His energy based attacks, physical techniques, and Super Saiyans transformations have allowed to defeated countless enemies.

Even Gods dont stand a chance against El Cid, who has proved badass enough to kill even them.

You better go home son, cause you don't stand a chance.

Not even the combine forces of captains and Visored could harm Aizen. He's just that crazy strong.

While Superman (DC) has been described as 'faster than a speeding bullet', 'more powerful than a locomotive' and being 'able to leap tall buildings in a single bound', these are not his greatest feats. When he is under the sun, his power increases exponentially, allowing him to defeat incredibly powerful opponents.

Due to his proficiency with ATs Agito can single handlely defeat and kill many adversaries.

The yellow flash Yondaime Hokage. If he's so much as spotted anywhere near the battlefields, the ennemy will sound the retreat.

Erza Scarlet (Fairy Tail), alias Titania. She defeated 100 high-level monsters in a row, which was considered impossible, even for the best.

The Jedi are capable of handling a large army of invading troops

King Bradley possesses incredible fighting skills.

Leonidas is a legendary badass.

Suigetsu once brung down a whole castle.

Sasori brought down an entire nation

Uchiha Sasuke is an above average ninja that can single handedly defeat several foes

The Incredible Hulk (Marvel) is one of the most powerful beings in his respective universe. His ever-growing rage is able to increase his power to the point where he is strong enough match the strength of beings such as Thor, Silver Surfer, and the Sentry.

The Six Paths of Pain were known for the destruction of the Hidden Leaf Village.

Asterix and Obelix are capable of beating the crap entire armies