what are you asking?
you want to know whats better a b18c or a b18b all motor? B18C. If you want to know whats better between a b18B and a B18A all motor...its the same motor for the most part and any differences between the two will be taken care of because if you are serious about a non vtec b series motor, you will be replacing the head with a p8r head off of a b20.