From my experience, these choices are based on your diagnosis. For me, I was only to get the "Red Devil" every 3 weeks. But, I had my genetic test back, which gave me two others. I had Brca2 and received Carboplatin and Taxol. I got the Adriamycin (Red devil), only one dose following my 12 weeks of the other two. I had a blood reaction called Pancytopenia and did not get the final 3.
I had DCIS, Stage 2 with Brca2. At Surgery time it was noted no lymph node involvement in the 3 sentinels.
It seems your 3 might be the protocol for the lymph node involvement.
You will get more responses, but this is mine.
Keep us posted.

Thank you for sharing your experience with me.

If you don't mind me asking...why is it called "Red Devil"?

I had all three chemo drugs you listed. Red Devil is nicknamed that as it is blood red, and your urine after each treatment will be red for a day or two. It is also so toxic that there is a maximum lifetime dosage. You'll probably be told to hydrate well to flush it from your system asap. I always took a large water bottle with me to drink during treatments and drank a minimum of 10 glasses of water per day Ask your infusion nurses what to expect and what you need to do or take to prevent or alleviate side effects. I had anti-nausea meds that worked great. I had a lumpectomy, chemo (16 infusions) and radiation. I was stage three and had lymph node involvement. I'm 3 years out and currently taking Letrozole to prevent it returning.

Thank you for sharing!