Personally if i was to spend the price for either (they are approximately the same price) i would go with Ti (dont get me wrong i am the biggest advocate of carbon frames and i think that carbon will be the future of nearly all bike frames once it becomes cheaper by larger scale production), but Ti is just as light as carbon with the reliability of a metal, whenever i see someone with a carbon frame they could just have a lot of cash on hand, but when you see someone with a Ti frame, you know that they have researched frames and is a likely sign of experience and a skilled biker. Thats just my take on the public view on frames.