I have no problems with Bruce Wayne -- he's a hero, he helps people, blah blah blah blah, yay Batman. But let's face it -- Batman isn't the kind of guy you'd want to have hanging around at a party. He's broody, he's pretty stiff, and is kind of an overall downer. I guess that's what the stress of saving the world does to you.
Catwoman, on the other hand, is fluid and sexy, slinking her way across the rooftops. She's sarcastic and funny, and does mean tricks with that whip. She'd also be an awesome party guest (although you'd need to check your valuables afterward).
Fellow IGN editor Kristine Steimer and I walked out of that demo and came to a conclusion: Now we only want to play as Catwoman.