Thor.

Thor; the Norse god of sky, thunder and fertility; half-brother to Loki, god of mischief, madness and evil; and son of Odin, god of poetry, battle, and death, and king of the Norse gods.

This blonde haired deity was adapted from Norse mythology by Stan Lee, and has become one of the most prominent figures in Marvel to date.
His weapon of choice has been a hammer, by the name of Mjolnir, from which he gains his powers. These include godlike strength, extreme resistance to injury, and being able to conjure storms and lightning.
Thor was banished to Earth by Odin, after waging war against a rogue race known as the Frost Giants.
He made his first appearance in Journey into Mystery #83, released in August of 1962.

"How do you make someone stronger than the strongest person? It finally came to me: Don't make him human - make him a god. I decided readers were already pretty familiar with the Greek and Roman gods. It might be fun to delve into the old Norse legends... Besides, I pictured Norse gods looking like Vikings of old, with the flowing beards, horned helmets, and battle clubs... Journey into Mystery needed a shot in the arm, so I picked Thor... to headline the book."
- Stan Lee describing the creation of Thor.


Supervillains

Loki is Thor's adopted brother and arch enemy. And to be honest, I dislike him. Not because he's a villain, hell if every villain was disliked, you'd never see any decent somic books or movies. Notice how I'm using the word 'dislike', instead of 'hate'. People are meant to hate supervillains, not dislike them. They're hated because they're trying to destroy the world. They're disliked because they're boring and they suck.
Other than him just generally sucking, he does have some cool powers. He's a Master Sorcerer, has superhuman strength, regenerative healing, and psionics(the ability to project his thoughts telepathically.)


Flaws and Attributes

Thor's main flaw, and attribute, is his hammer. Without it he's just a big, hairy guy that could probably beat any normal person to a pulp, but wouldn't be able to take on the likes of Hulk without it. He also refuses to adjust to modern ways, assuming that they should rather adjust to him. But what do you expect from an ancient god. His temper does also seem to get in the way. Not a bad thing when he's in a fight, but a very bad thing when it comes to decision making.
Mjolnir is his greatest asset, allowing him to conjure great storms and lightning at his will. It also cannot be lifted by anyone other than Thor. Yes, even Hulk. Yet he's still able to swing it around like a toothpick. He's also able to fly; if strength, durability, and regnerative healing wasn't enough.


Fun Facts

- Thor is described as the "strongest of all gods and men".
- Mjolnir means 'crusher', and is best known for being used to kill Frost Giants.
- Thors civilian identity was Donald Blake.


Possibility of Thor Existing

Thor is one of the Normans gods. They believed that lightning and thunder was their god fighting foes, or squabbling amongst themselves. They also believed that the greatest accomplishment in life was to die in battle, and go to Valhalla where you would dine with the gods themselves for the rest of eternity.
There's no arguing with that logic. So yes, I'll allow Thor to exist.

"Thor Odinson... You have betrayed the express command of your king. Through your arrogance and stupidity, you've opened these peaceful realms and innocent lives to the horror and desolation of war! You are unworthy of these realms, you're unworthy of your title, you're unworthy... of the loved ones you have betrayed! I now take from you your power. In the name of my father and his father before, I, Odin Allfather, cast you out!"