Uhmmmm, they both get one week to prep. How does Batman win this? Is he going to somehow come up with better tech than Tony in one week, while ignoring that it's taken Tony years... No, excuse me, decades to invent his current tech? If they were to both rely solely on their tech and know how, Tony beats Bruce by a country mile.
He doesn't need a better suit, just a better way to defeat Tony and this is where Batman is above Stark. It's not about making qute technical devices, it's about beating someones ass with all means possible, as fair and unfair as possible.
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your argument is awfully one sided. you almost make it seem as if tony would just sit there drinking a pint of his favorite, while Bruce toils night and day to come up with ways to hack and bring Stark to his knees. Tony is a very good prep artist, and where Bruce may excel a bit, it would not make up for the fact that Tony is superior in every way while in armor, and he's smarter to boot. You're going to have to come up with something better than what you've come up with.
You didn't come with anything, why should I. But let's look at both chars. Tony preps against people and loses. He is good at making tech and nice at prepping but he relys to much on his armor. Batman on the other hand is prepped against anyone in the JLA, he made Brother Eye, prepping against others, even if it's dirty and unfair, is his thing.This is not an "who makes the better or prettier armor" contest, it's an "who will eat dirt in the end" kind of contest and Tony is already used to eat dirt, he will do so again.
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Sig made by my mate, the one and only One_Angry_Scot
Yes Batman is known for his tactical preparation, however, Tony stark has more fire power and isn't a slouch in preparation himself. Then again, Bruce has his own unique tech