You'll be competitive at all of them. I wouldn't fret about the GMAT score (if that's your concern). You shouldn't have problems getting into UNC or Texas, and Michigan and Duke while competitive are still within reach for you. Depending on how strong your resume is (i.e. quality of work experience) you may want to add one "stretch" school - Kellogg, Chicago or Sloan. Heck, maybe even Stanford if you feel you have something unique or compelling about you beyond the resume.
Alex Chu
alex@mbaapply.com
www.mbaapply.com
http://mbaapply.blogspot.com