Even though it feels like Wolverine seems to get his butt handed to him on the regular, the most popular member of the X-Men makes up for it in being absurdly durable. Now, you might be thinking that a character with a healing factor, superior senses, and an adamantium skeleton with death-dealing claws is formidable, sure, but not necessarily overpowered and you would be correct … if not for the fact that Wolverine’s abilities have been stretched to nigh-invincible levels over the years. For one thing, Wolverine can survive any type of man-made weaponry, including atomic bombs. At one point, Logan had his skin literally destroyed by a nuclear explosion, but was somehow able to regenerate it all back and walk away.
Perhaps Wolverine’s stubborn refusal to die has something to do with the pact he made with Azrael, the angel of death, who promised the mutant that he could return to the land of the living if he proved victorious against him in a one-on-one battle. That pact has since been scrapped in the current canon, but Wolverine’s popularity has also helped make him stronger than he really should be, as he regularly defeats enemies who on paper should be able to make quick work of him. Moral of the story: it pays to be the face of an entire franchise.
http://marvel.com/characters/66/wolverine Source: Marvel.com
Deadpool, aka Wade Wilson, gets a bit of a pass for his many wildly powerful abilities because he’s not really supposed to be taken seriously as a character to begin with, but that doesn’t mean he’s not overpowered. Much like Wolverine, Deadpool also enjoys the benefits of having a healing factor, but the Merc with the Mouth’s makes Logan’s look relatively useless in comparison. Deadpool not only enjoys the usual benefits associated with having a healing factor — immunity to toxins, fast-healing wounds, decelerated aging — but in his particular case, everything is dialed to 11.
He’s practically immortal, for one thing, as he’s not only able to go centuries looking and feeling pretty much exactly the same, but can survive just about anything. No gunshot or stab wound is too much for Wade Wilson, who is able to grow entire limbs back in a matter of hours, including his own head. Just think about that for a second: Deadpool had his entire head smashed in at one point by the Hulk and was able to grow it back, brain and all.
As if that weren’t enough, Deadpool’s mastery of both projectible-based and melee weapons make him a nearly-invincible combatant and he also has an immunity to telepathic assaults on top of it all, meaning no one is able to penetrate his mind. In other words, Deadpool is like the cockroach of the Marvel universe, which is a label that he would surely relish.
http://www.space.ca/movie/deadpool/ Source: space.ca