screnter I would absolutely pass on making a choice of where I am going to plunk down 3/4 of a million dollars based on an internet blog.
Both of the communities you mentioned are a landing point for youger families who have strong income. Both communities are fairly generic from the standpoint of neither having any strong history, and basically both of them being master planned communities. More then likely both of them will hit you with Mello Roos. Both have very good school districts.
My advice would be that if you are relocating then I would absolutely rent in one of them to see if it is a match. Both developments have pros and cons. If someone is saying that 4S by far and away has more character then CV then I would say perhaps… however on a grand scale it they are both similar to having a manufactured master planned community character then say more well established communities in San Diego.
Price is driven by demand so the higher pricing in CV indicates a stronger demand. The primary cause is that CV is much closer to the engineering and biotech firms located in the Golden Triangle.