I mean absolutely no disrespect to Acoustic Zen, but imo Tony Minasian is a wizard. I honestly do not know how he gets the results he does. Every speaker of his that I have heard sounded rich and warm and lively and totally non-fatiguing, and it doesn’t matter whether his design choices "made sense to me" or not. Imo he is a quiet genius. I can’t make a comparison for you because I have no experience with the Crescendos.
Duke