Many years ago I visited Italy 3 times so i've done the sightseeing bits, Rome, Venice, Florence, Milan, Bay of Naples, Pompeii etc.,
Now some 30 years later

and with 2 teenage daughters who have no great demands other than a nice pool, comfortable hotel with a bit of entertainment, night time shopping and some streetlife we're considering an Italian island.
Any ideas welcomed?
PS: We've been to Majorca several times in recent years and probably want something along the same lines but more traditional as opposed to Karaoke and Kings Head pubs!