Alright, get ready for some fanboy rage on this one:
Batman vs. Spider-Man
I suggest this fight because the Screw Attack show
Death Battle! has announced their
next fight. Yes, it is Batman vs. Spider-Man, and Bat-Fan's are already using the same three arguements they always use to declare Batman's inevitable victory:
1.) Batman is the best fighter in the world.
2.) Batman has a gadget for every situation.
3.) Batman can outsmart any opponent.
Sorry, but that doesn't cut it. Now before I face an onslaught of Bat-Rage from the fans, let me say that I love Batman. Batman is awesome! But part of what makes him so awesome is that the odds are against him. He can't just punch someone into defeat like Superman or the Hulk. The downside, however, is that means a lot of other superheroes can beat Batman.
Now I know that the "But Batman took down the entire Justice League!" arguement is coming. Yes, but consider the circumstances of that story. First, Batman had ample preparation time. The rules in this thread state that "prep time is not given unless otherwise stated".
Death Battle! has a similar rule. Given that they are from seperate universes, this means that Batman does not have previous knowledge of Spider-Man or his powers.
Secondly, Batman beats the Justice League because none of them are trying to kill Batman. If Superman really wanted to beat Batman he would hover a mile above the Bat-Cave and shoot heat-vision through Batman's skull.
Death Battle! allows any character restraints against killing to be removed, however for this thread we will keep Batman's and Spider-Man's stance against killing in tact.
Even without trying to kill each other, I still give this fight to Spider-Man. He is much faster, much stronger, and has a Spider-Sense. Batman's intelligence and superior fighting skills are not enough to overcome Spider-Man with no preparation.