[quote=Sloth]
Not to mention Spidey's style is extremely difficult to properly utilize without the almighty Spider-Sense. 
[/quote]

The Spider sense only tells Spidey to move at that time, it doesn't tell him HOW to move. That's still down to personal habit. What foot does he push off when dodging? What fist does he swing with most often? Since most of these are quick reactions, the brain will often choose one and then begin using that over and over.

As regards Deadpool, true, but even Taskmaster has said that Deadpool is somewhat predictable, notably he always dodges to the left.