It is my understanding that you will not be make to choose. PMI teaches a project management framework that is agnostic in regards to the tools you use. You should know what tool can (and cannot) be used along with its pros and cons, but I highly doubt the exam will ask us if a certain tool or technique is better than another.
It might ask which one is more appropriate in a given situation. In that case, EVM is better suited to contracts (value focused) and CCPM better suited to production work (resource focused).