All these frames are made in the same factories in Taiwan, Fuji, Kestral, Trek, Specialized, cervelo e.t.c

Scott, is also made in taiwan but they have a different approach, and thats why its the ONLY popular frame under 800g. Even high end Colnagos are above 1000g.
Scott is also rates one of the stiffest and most durable frames.

Having said that, pick any frame listed in this thread and you will be good. All the geometry angles are the same. It comes down to a matter of brand loyalty, colour choices and nationalistic prerogative.

Run Shimano Ultegra.