See which one has the geometry that suits you. I really like the longer stem of teh Bianchi (my bike shop put a Bianchi stem on my Giant 'cause I couldn't afford the Bianchi).
Ain't nothing at *all* wrong with hybrids... tho' if you're basically on raods you may want to upgrade the tires to thinner ones. THey are *much* faster. On road tires, I can keep up in most pacelines (the aerodynamic advantage is moot when I'm tucked behind somebody and I can go reasonably aero for short spurts).