Spider-Man: Miles Morales

Miles Morales was a character I didn't quite know where to place at first, but over time I actually came to like him better than Peter Parker. Especially since Marvel keep wanting to regress Peter Parker to high-school, undoing and ignoring decades of character development. Miles, as a younger character in every sense of the word, has much less baggage and feels like a fresher take on the Spider-man mythos... not to mention, now that he's in the main Marvel Universe he has more of a positive influence on Peter Parker, who gets to take on a mentor-like role.

And, perfectly honest, I just think Miles has the cooler costume.