This is purely an opinion question, but my vote goes to Wolverine. He has trained in many forms of fighting for a couple of hundred years. With his heightened senses and healing abilities. That paired with his enhanced skeleton keeps him coming back for more. -------------------------- Gamora is hands down the best hand to hand fighter in the Marvel Universe. She was trained by Thanos of Titan to kill the Magus and fighting-wise, she is cosmic level... far beyond what anyone on Earth save maybe Thor could attain. There's a reason why she is known as "The Most Dangerous Woman in the Universe".
No, Green Arrow is a character from DC Comics, not Marvel Comics. He is a skilled archer and a member of the Justice League.
Daredevil is a Marvel Comics character
Spawn is not part of Marvel or DC comics. He is a character created by Todd McFarlane and belongs to Image Comics.
DC and Marvel have a superhero named Captain Marvel, but DC's Captain Marvel is more popular (The character with the white cape and is red with a lightning bolt on his chest)
Ozymandias - Marvel Comics - was created in 1996.
"Batwoman" is a DC Comics character .
No. Deathstroke is a DC Comics character and Deadpool is a Marvel Comics character.
Cheetah - Marvel Comics - was created in 1977.
Presence - Marvel Comics - was created in 1977.
No, Batgirl is a DC Comics character, specifically associated with the Batman series. Marvel Comics has its own distinct set of superheroes and characters.
Asmodeus - Marvel Comics - was created in 1981.
No. DC's first comic book title was Detective Comics #1 (which is what "DC" originally stood for) in 1937. Marvel Comics #1 (featuring the Sub-Mariner and the Human Torch) was published in 1939, by Timely Comics, a few months after DC published Action Comics #1 (with the first Superman story). The company changed its name from Timely Comics to Atlas Comics in the 1950s, and to Marvel Comics in 1962.