To me, if you look at the size of the connector required for CHademo verses the J1772 implementation, and the fact that you're tapping into the canbus of the vehicle for control verses on a dedicated control input, I do believe the CCS implementation is superior, and ultimately less expensive to implement. Max power capability is within the range of usability. Both systems can support more power than the current vehicles (maybe except for Tesla) can accept at any one time, and ultimately, CCS may have the edge. IT's chicken-egg conundrum. Lots more manufacturers chose to support CCS, and, over the next few years, it is likely many more CCS stations will show up. Chademo will either switch, or become the bastard stepchild. I do not see the J1772 standard and CCS losing this battle with the seven big manufacturers backing it and starting to produce cars that will use it...Nissan and Mitsubishi just aren't as big overall. I can see BMW's choice for Japan...imports into Japan are not as common as exports, and they had a decent infrastructure already built. Outside of a few metro areas in the USA, there are few Chademo units. Yes, more are being built, but the implementation of vehicles like the i3 that has been released for the entire US as opposed to limited release on some of the other CHademo equipped vehicles, along with the new VW and several other new models soon to be available nationwide, I think the tide is turning.
When dc fast charging becomes as common as finding a gas station, we're all going to be winners...competition will keep the costs down. It's like the early days of the gasoline powered cars, but we have bigger expectations. Those people were true pioneers, and bought in expecting trials...we've been spoiled and expect the infrastructure to exist already...a dose of reality needs to be prescribed.
Hassle is, it is NOT cheap to install ANY DC fast charge system, but it is only a much smaller incremental increase to make it compatible with both systems. They've been selling Leafs in my areas for more than a few years now, but still almost no DC fast charging systems anywhere. So, it's not an issue not having that capability. If BMW and VW fulfill their promises, there will be at least a few CCS units.
There's a business case for gasoline stations...often, lots of potential users - therefore a market. Until there are more EVs around with DC fast charging capabilities (and probably one reason why BMW chose to make it standard on 2015 MY vehicles), there is little incentive for commercial for profit companies to install them, and subsidies only go so far.
Anyone have a state by state sales for EV's? My educated guess says a significant majority of them are in CA, and that is one reason why there are more charging stations coupled with the state's green creds pushing for them. That certainly isn't the case everywhere in the USA. Europe has seemed to embrace it more as a region, verses in the USA where it is more a state-by-state thing.