Spiderman is Marvel, no doubt about it. He's got that classic Marvel charm and his storylines are deeply integrated into the larger Marvel comic universe.
Definitely not. Spiderman has always been a part of the Marvel Comics universe. Marvel has its own distinct set of characters and storylines, and Spiderman is one of the most famous among them.
Sure is. Spiderman originated in Marvel Comics. His character and storylines are a staple of the Marvel franchise. Marvel has crafted a rich and engaging world around him.