I currently have an aluminum frame Bianchi and am considering another bike. I'm 6'1" 200 lbs, so not a jockey and not a racer. I'm looking for a bike primarily for century rides and am considering either steel (colnago classic, fondriest) or titanium (airborne, entry litespeed) - not really interested in carbon fiber. I'm not sure I can tell the differnence in a 1-2 mile test ride. Assuming fit is fine, any opinions on material?