I went with a CC 110. Why? Just for a change. Plus they have a 110 year warranty. It was on sale at Chain Reaction for just under $100 just over a year ago - lots cheaper than a King. I see today they're $217 Canadian. Ouch-ouch-ouch.
Chris King headset's are awesome. The one on my Merlin is about 9 years old, and besides regular service (have it greased every couple of years), I've never had a problem with it.
Bike: Merlin Custom ExtraLight, Enve 1.0 fork, Pacenti SL23 rims with navy blue Chris King hubs & matching spoke nipples, dual King Ti Cages, Zipp - Contour SL, Dura-Ace 7800 9speed soon to be Ultegra 6800 11speed