Cannondale Rush 6 or Specialized FSR XC (2007)?

I am choosing (for now) between the Cannondale Rush 6 and the Specialized FSR XC. I just test rode both of them, but am not sure which one I like more. The Cannondale felt quite a bit lighter when holding it from the center (suggesting most of it's weight is in the center) than the Specialized did. The Cannondale has a single pivot suspension, while the specialized has a four pivot suspension. With the Specialized, it felt like I was getting more power from my pedaling, and there was absolutely no bobbing with the suspension set to its lowest setting. The Cannondale didn't bob, but the suspension seemed a little squishy when weight shifting, and I'm not sure that I liked how that felt. The Specialized shifted a harder than the Cannondale, but felt like it would do better on pavement suspension wise. I plan to ride 6.5 miles to campus with elevation change. I might choose a comparable 29 inch full suspension over these once I try some. Any opinions or other bike suggestions? Thanks!