My x-country was Fort Pierce-Crystal River-Orlando (Sanford)-Fort Pierce, in a C152 - that took a while...
At the (modular) FTO were I was, there was NO recommended route (like FFF, I would see this as spoon-feeding the students), but as I was using my week-ends for hour building, the CFI asked one day why I wasn't planning a 300 nm x-country with 2 land aways so as to tick one of the boxes for the CPL (which at the time was still a year in the future!).
I do believe it's better for the student to do the whole planning of his/her CPL qualifying x-country him/herself - flight planning IS part of the whole exercise.
Cheers
P.S.: in Britain, I would recommend Caernafon for the North Wales scenery on the way and the approach over the bay.