Lanzarote should be ideal. Lovely island, wonderful climate, no high rise, no lager louts in October, lots to see plus take a day trip to sister island Fortaventura. We stayed in 4 star hotel near Airport, i think name was Beatrix Playa, a bit expensive but worth the pampering. Have a good holiday
Went to Nice last year, was not impressed with people...I was speaking french but they were still snotty...4 euro for coffee wherever we went and quite a lot of traffic on small streets. Went to restaurants and food wasn't great.
Place itself is nice , but would not go back for above reasons. Went to Lazarote and Fuertuventura.... more to offer in some ways if you just want a relaxing break. Get a guidebook and hire a car and you're laughing.