Hi Marie, I did the Andalucía trip in May this year and enjoyed it, good hotel in Mijas - a small town, lots there but not the very tacky Spain. Well organised excursions to the surrounding highlights. Of the other 8 day Europe trips JY do, I've also done the Cilento Coast trip - which was super - good hotel, good food at night, a really quiet part of Italy (not the full on touristy locations apart from the trip to Amalfi, which was good if hectic). Groups really are friendly and its easy to join in.
I would say pick the trip that appeals to you most.