I'm not sure that there are any schools that don't place a lot of emphasis on work experience. That will probably be the most important component of your profile, no matter where you apply. Some schools, like Carnegie Mellon, will let a select number of undergrads go right into b-school. And others like Vanderbilt seem to be more open that others to admitting people with very little work experience. But I wouldn't say that any school doesn't place a lot of emphasis on work experience.
Of course, the good news for you is that work experience is pretty much the easiest thing for you to change and improve on, simply by waiting. You can't go back and change your undergrad GPA, and improving your GMAT score can be hard, but moving up the ladder at work for a few years can help your chances a lot. In fact, you will have a real advantage over other applicants if you decide NOW that you want to apply to b-school in a few years, and manage your career accordingly (taking the lead on an extra-tough assigment at work, making sure to demonstrate enough community involvement, etc.). Many applicants decide to apply literally at the last minute. They don't have the benefit of this foresight, and are left with trying to "polish" their unspectacular work records.
Scott
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Co-Author, Your MBA Game Plan