Bruce Wayne gets 10 hrs of prep inside Starks Mansion/Stark Tower before the fight starts..
Vs
Tony Starks gets 10 hrs of prep inside the Bat-Cave & Wayne Tower before the fight starts..
Both men start out in there custom made Biz- Suits, no weapons or gadgets of there own making. Both know they both have access to eachothers tech during this battle..
At the end of the 10 hr mark, both men meet in the heart of Metropolis for a one on one battle..
Tony slaps a neutralizer on his armor like he did during the Armor Wars, and Bruce is stuck in a suit that does not move. Tony no longer needs a suit to be super human, just look what he recently did to Daredevil.
Nobody would know better how to whip up something that could neutralize his own armor than Tony. Bruce could likely do the same but it appears Tony is extremis powered now even without the suit and if it came to h2h, well yeah, tony one shotted Daredevil sans armor.
Gender: Female Location: Poppin Pills on the Rainbow Bridge
Still unnecessary. I don't get the big deal with upgrades. Especially for Tony. His whole thing is being a normal human in a super suit of armor. There's nothing wrong with having a weakness. It makes the characters more appealing. Like why make Hulk insanely strong AND smart? Totally destroyed characterization. I hate it
I am assuming all the secrets of each other's lairs are open. Which is to say, Batman's ultra paranoid booby traps won't attack Tony etc.
Batman wins. Tony shows up with a super upgraded version of the Justice Buster, with a new power source giving him 500% more power, coupled with his hacking of the Bat computer which teaches him about the Speed Force and enables him to jury rig a facsimile etc.
Batman shows up with a new Bat suit, which is promptly disabled by Tony using a hidden backdoor code. Whilst Tony gloats over the motionless Batman, now frozen within his suit, Bruce wins.
'You didn't think we'd come to Metropolis and not call HIM, did you?'
'Ah yes. Your alien chum. I've read about him in your files. Kryptonite, was it? So kind of you to provide a sample for me too. I even made a new cocktail with it. Has quite a kick. By the way, you're out of Scotch.'
THOOM
Superman dies.
'That wasn't...the only plan I had....'
CLICK.
'I've just armed 25 bombs around this city. I know what you can do. Your...Extremis. You're fast, but not that fast....Give up.'
Thats what it comes down to.
It'd take Batman all of 10 minutes to realize how much (IE, a hell of a lot) Tony brings to the table. Thats 9 hours 50 minutes to plan accordingly.