Originally Posted by
ThinLine
CAAD9 would be my choice. All the rest are basically the same frame, if not made in the same building in Asia somewhere.
I disagree. The OCR is more of a comfort geometry than any of the others; the TCR is more comparable in Giant's lineup. In terms of responsiveness you're probably looking at:
CAAD9>allez>trek> OCR.
Of course, in terms of comfort you're probably looking at that in reverse order.
While the CAAD is probably a little better frame than the others, get whatever fits and feels the best. There are some subtle differences in the geometries of those frames.