we are staying at Grand Lido next week.
GL has your #1
not sure about the rest, although historically we found nude beaches are much more sociable than non nude.
Just a follow up. We stayed at Grand Lido twice and each time they had AC issues. (The first time we thought it was a one off) Room was 82 degrees and the staff was in no rush to get the AC fixed. most everyone had no AC most of their trip. We do not plan to return there.