Overall, if I had to own one bike, I'd stick with my Ibis Ti. And I LOVE my Cannondale Six13.

But Ti is forever weenies. Take that to the bank. Nothing is quite as bulletproof. This coming from a guy who's Merlin BROKE after 40K miles. But that was an anamoly. From all reports my Ibis (newer butted Ti tubing than the Merlin) will be around forever. It's @ about 40K miles itself by now. But showing no signs of failure. And I expect to be riding the bike in 30 years (I've owned it about 11).