Well let's be honest, in this employment market, where the supply of people who want to go into consulting is much higher than the number of available positions, and especially at Kellogg or another school where the average GMAT is above 700, it's going to be hard to get onto a closed list with a consulting firm with a low GMAT score since the competition is so tough. However, that's what open lists are for. And like nink said, once you're in the interview, how you perform on the case is much more important than GMAT score.
As for whether to put GMAT on your resume, it depends whether you're recruiting for an industry that cares about it. Banking or consulting? Yeah you should probably put it on there. Marketing, General Management, etc., probably not. In fact, I'm recruiting for pharma/biotech and I was told flat out by 2nd years and our career office not to put mine on my resume, since recruiters don't care about it. Most companies I recruited at didn't even ask for my GPA at Kellogg.