Spiderman easily wins: he has at least as much experience as Batman (don’t forget he began his carreer as superhero as a teenager, much younger than Batman), is way stronger, faster and more agile and has a built in alarmsystem. He is also tougher. Batman can throw whatever he wants at Spidey, but Spiderman can avoid all of these while filling in the crosswords. Remember, all what Spiderman needs is one good punch, and it's exit Batman 🙂
And please, don’t gimme that “Batman thinks ahead and plans his battles like a game of chess”. I know he’s very smart and quite tough, but Spiderman isn’t a retard himself. He has fought like every bad guy in the Marvel Universe (a million times), and even a good deal in other universes. Spiderman uses both his superpowers as well as his intelligence. There are some people who really think that Batman is some kind of analyzing computer who just has to see his opponent to know his weaknesses and so on… That’s not true, and besides, Batman will have a hard time spying on Spiderman (and following him), because Spiderman will feel it if someone is watching him.
In a fight mano a mano against Spiderman, Batman wouldn’t stand a chance. Of course, when Batman starts building traps and hidden weapons and so on, then he could actually win the fight. Sorry guys, but that would be a very lame way to win! It wouldn’t be an honnest fight. And don’t forget that also Spiderman can build traps, but of course, he won’t do that, it’s not his way of fighting. I respect Batman because he has taken on very tough and dangerous opponents while he’s only a human with no superpowers, but Spiderman is really out of his league.
It doesn’t mean a thing that Batman knows hundreds of fighting styles, because he never will be able to actually hit such an extremely fast and agile guy as Spiderman. And even if he does manage to hit him a few times, I don’t think Spiderman will go down ! He can take a whole of a lot more than that. Spiderman has been beaten up by much much stronger people than Batman, and still managed to win the fight by fighting on his willpower, strength and brains.
So sorry Batman, no hard feelings, but this one you can’t win.