Well I personally LOVED CnC General+Zero Hour.
Basically I've loved all of the CnCs, but they got less appealing since CnC3, and I barely Played Red Alert 3, and I doubt I'll be picking up CnC4.
I just don't understand how they could go to the proverbial drawing board and make a list of everything CnC is and slowly start crossing them out.
Base Building
Hero Units
Resource Mining/Harvesting
Etc Etc Etc