Originally Posted by due ruote

OP, what do you plan to carry on the commuter? If you intend to use panniers, pay attention to the stay length so you don’t have heel strike problems. Maybe especially an issue for you as you’re tall. Touring bikes, or bikes spec’ed for 27” wheels may have an advantage.
Speaking of touring bikes, has anyone mentioned Cannondale yet? The ST models seem to get lots of love here.