[Jason Abbadon]

Tony can outsmart Reed on tactics and Reed makes Bruce ride the short bus.

Really Bruce is fun to a limit- he's the ultimate "Mary Sue" charcater that writers have constantly changed to be able to do not only a little of everything (the original premise of the charcater but now can do anything better than anyone.

In Marvel, (as in life) charcaters specialize and master a field while still being capable in other fields.

In this matchup, it all depends on how they encounter each other- if it's a "never seen each other before" thing where universes collide, I'd go with Tony- DC's armored guys are total losers and Bruce would underestimate Tony.
Just Tony's sonic screamer to "humnely" take down a target would nail Bruce.

But if it's Bruce having a huge profile on Tony...it'd be nasty.

If they both had a profile on ecah other...it'd be super nasty!