canklecat

I have both. The Shimano 600 are better.

So far the only C&V hubs I've ridden that rival the Shimano 600 for both quality and value are the Mavic hubs on a wheelset I recently got from another BF member.

My Sansin hubs (not sure of the model) are comparable to the Suntour GPX hubs from my Ironman. They're good but not great. I wouldn't go out of my way to use either set of hubs to build new wheels around. I'll save 'em for indoor trainer sessions.

The Shimano 600 hubs that came with another model Ironman (Master or Carbon, not sure which) and Wolber Super Champion Alpine rims are a notch above in buttery smoothness and build quality. They're comparable to the more recent Ultegra hubs on a borrowed wheelset. The Mavic hubs appear to be equal to those 600 and Ultegra hubs, although the Mavic design is a bit quirky and I'm not sure about tools to disassemble and service it.