I mean, I do appreciate that FIM has given us a creative line of new villains for each season. They've us Discord, and Chrysalis, just to name two, but what I would personally prefer is for some, not all but some, villains or antagonists to be brought back, so that they can be built up more and made more complex. A new monster of the week can keep things fresh, but is that better than building on the villains you already have? I have to go with the latter.