Oh Bruce, such a lonely tormented man. I don't feel he has the ability to trust anyone and that definitely puts me off. I do respect his thirst for justice and vengeance but to crave that above all else isn't healthy. He's the scariest man in comics because of that wonderful agile mind of his. Plans inside plans, a clarity of thought focused like a laser beam.
And then Tony, finally on the right path after years lost in the bottle and women, so much potential in such a frustrating man. A little kid with dangerous toys really, but a first rate mind on par with Reed Richards. He's more fun than Bruce but catch him in a mood and good luck getting him to communicate. Out of the two of these flawed men Bruce is the better, but I'd want to be around Tony just for the sheer thrill of his fast paced life.