With all the Prep time in the world, Batman couldnt overcome venom and carnage together. One on one, i am sure bats would find a way. Spiderman is far stronger, far faster , has far greater endurance than batman, and is even on the same level of intelligence than bats. Considering all of this, and seeing the trouble Spiderman has with these two, one at a time, I htink it should be apparant that batman has not a chance.
I always like rooting for the underdog, especially for batman, because he is the underdog of comics, but sensibility shows me that there is no arguing Batman into a victory between these two.