The FSA is a roller bearing design which means there is a larger contact area, good for heavy duty use.They have replaceable cartridges. The Cane Creek are very good quality, use conventional balls and some have grease ports for easy maintenance. The Chris King is a very high precision, costs a fortune and probably lasts for ever... but, you can ruin any headset by overtightening it or not tightening it if it's loose. Personally, I wouldn't think twice. For heavy duty touring use, the FSA is the best design.