37 year old - just diagnosed

Starting chemo is scary but look at it as a first step to being well! I can’t answer your question about comparisons, sorry - I was recommended to have ACT by my oncologist, and I did. However your query, which is perfectly reasonable, does beg the question have you asked your oncologist about his/her recommendation? Even in identical situations (pretty rare given the variability inherent in breast cancer), oncologists will have their own reasons for preferred treatment in individual cases - experience regarding effectiveness, tolerance, research etc. You and your oncologist are in this for the long run so you need to understand each other. Chances are his/her research may be answer your question. Best wishes for your first session.