2. Speed
Spider-Man is generally described, in comic book terms, as what is known as a high-end bullet-timer. That is he can see a bullet coming towards him, after it's left the barrel of a gun, and still be quick enough to dodge it easily. This speed of movement, which generally means he can move faster than the human eye can see, means that Batman would have one hell of a time trying to tag him. More importantly, it would mean Batman would find it impossible to dodge Spider-Man's own attacks (and with Spidey's attacks utilising the strength we've already discussed, it would be lights out for old Bats). As the above picture illustrates, Spider-Man has the speed and agility to simultaneously dodge and outmaneuver no less than 9 laser beams being fired at him from close range. When Batman can attack with more than that kind of speed and relentlessness, Spider-Man might feel threatened. As things stand, forget about it.