I will bite. I ran the Southeast region with CCS this year. Started racing with Wera last year but only ran two races. Also, ran the VIR round with Wera this year.
CCS does seem to have bigger grids for whatever reason. I dont really know. Wera requires more things to be wired, which I happen to like. People think Wera's tech is much more stringent but its only a few extra things to be wired. With Wera you only have to take your belly pan off and bring your helmet to tech. CCS requires you to remove your belly pan and bring it with you along with your helmet, gloves, and boots. Big pain in the arse carrying all that around.
One thing I cant stand about CCS is that they grid the races based on preregistration then registration not points like Wera. So you get a bunch of people that probably shouldnt be in the front of the grid which can cause problems in my opinion.
They both have their pluses and minuses. I just wire my bike to Wera's tech requirements then race them both. The more racing the better.
If I had to pick one, it would probably be Wera but I do like the CCS schedule better for this region.