My personal view of the relative difficulty in walking over the Pyrenees on the Frances and on the Aragones is different from that of the OP. I walked the Frances for my first camino, from SJPdP to Santiago, at the age of 67, over the Pyrenees with a night at Orisson. The next year I walked the Aragones from Oloron Ste Marie to Santiago, joining the Frances at Puenta la Reina. The OP's comment that the walk up to Somport was more difficult than that to Roncesvalles on the Napoleon does not agree with my experience. I walked from SJpdP to Orissson, then on the next day to Roncesvalles, and found the two days' walk strenuous and challenging, with a short, steep uphill walk on the first day and a longer day with a slippery downhill on the second. From Borce I walked over the col de Somport to the albergue just past the col, in one day, and found that day easier than either day on the Frances: not so steep uphill as the first, nor ending with a steep downhill before I arrived at my accommodation on the second day. My comment may well be a misunderstanding of the comparison, but I would not want pilgrims to avoid the Aragones on the grounds that the walk up to Somport was more difficult that the walk from SJPdP on the Napoleon to Roncesvalles.