as you know I stayed up in Benahavis on my own recently and it was very quiet!
One more thing, you went in the second week of november, don’t expect Puerto Banus to be hopping at that time of the year either. It is very quiet, specially during the week. Most of the second line shops and restaurants remain closed. It picks up a bit on the weekend, but that too is relative. Probably the only place you will find anybody during the week on the harbourfront is at Picasso’s.
Busier than Banus at this time of the year is Marbella. There is always a lot of activity along the board walk during the day. And it specially picks up on the weekends when the Spanish come down from Madrid.