TBH Pen y Fan is my least climbed mountain in the area, much prefer the Eastern Beacons (anything past Fan y Big), Black Mountains (Craig Cerrig Calch, Pen Allt Mawr etc), Forest Fawr and of course Fan Brycheiniog!
I always try to persuade people to explore other areas, Pen y Fan may be the biggest but is so far from the best!
My thoughts are to stick to the south side for easy access to the minfordd path up onto Cadair Idris. Will also use the time to explore the region so thanks for the suggestion on other good camp sites in the area.
Don't mind basic facilities as long as there is enough of them I.e don't like to queue!
With regards to scalleys it is luck of the draw, the current plan is to head up on a Sunday returning mid week so hopefully would be quieter.