FCC is very interesting. I enjoy it, a lot, but it's not what I expected. It's not a standard chocolate flavour at all, nor is it a replacement for the old Milk Chocolate. The MC was a rich decadent pure chocolate, whereas this one seems almost like a Vanilla/Chocolate mix. The frosting taste is prominent, with a slight chocolate undertone running alongside it. The aftertaste is pure Birthday Cake to me though, just all frosting. Good news is I love frosting.
Hard to say where I would rank it, bc I've never tried Snickerdoodle or CnC in oats, so we'll see. I like FCC so far, but it doesn't satisfy a full-on chocolate craving. I wish MC sold better so it was still around, bc FCC is too different from it to be a straight replacement, and I truly fell in love with MC in oats in Sweden. It went from near the bottom of my flavour rankings to near the top. The oats really made it feel like rich, melted chocolate ice cream.
I gotta say I like the risks PES takes with its flavours. From being the company that popularized Snickerdoodle, to bringing out Blondie which is the most unique flavour out there IMO, and now FCC. I think you guys really were the first to break out of the industry mold of just the standard mundane protein flavours.