I can’t decide between Andalusia/Paris/Riviera or Croatia/Montenegro/Greece for September?

The first seems glamorous, stylish, focused on long dinners and fashion and atmosphere. I’d start in Seville and Granada, take a train to Paris, then spend last days day tripping around with base in Nice.

The Balkans option seems adventurous and scenic, old towns to explore, island life. I’d do days 1-7 in Croatia, a couple days in Montenegro, Athens and a week on Naxos.

For reference, last year I did Lisbon/Cascais/Sintra to Sao Miguel in the Azores and loved it.