Sorry to take so long to reply. I did the GR65 and the GR6 route through central France simply because I changed my mind about another route at the last minute. I planned to hike from Lake Geneva to Nice on the GR5 but began reading about sheepdog problems en route (not keen on dogs, especially ones that bite) so decided to go elsewhere.
I've hiked the Tour du Mont Blanc from Chemonix which I think is one of the best. People come from all over the globe to do it, the campsites, Refuges and so on are really great. I also did half of the Haute Route Chemonix towards Zermatt but had to re-route myself because of deep fresh snow, it was July!
I also downloaded (free) 'Travels with a Donkey in the Cevenne' by Robert Louis Stevenson, read it and then did the walk. The start is also at Le Puy en Velay and goes south towards the Med, again a really great hike, took me 12 days.
I'll be 72 next April and I keep thinking that if I am still healthy next July I might hike the GR10 again, this time the long route of 50 days, but this time from the Med to the Atlantic, just not sure as yet. My wife wants me to hike with others so I am now actively looking for other people who might want to 'have a go'. I've now had three blood test and have been told I'm now fine. My next one next March will be done over the phone, I'll get my blood taken, then a week later the hospital will phone me. If I'm Ok fine, if not I will go back to the hospital as usual.
In June this year I re-hiked the Pennine Way, north to south, took me 19 days and then recently met up with some strangers for 3 days of circular hiking at Malham, a great place. I camped, they stayed in B & B's. Good fun, good company, good food and lots of beer! I meet with such people via the site www.walkingforum.co.uk.