Nice choices I've visited all those places and it's hard to say which one is the best. I go to Zadar every year. Makarska is cheap and has very good night life. Zrće is great if you wanna party all the time. Dubrovnik is the most beautiful imo.
I hope I visit Aviles one day. You said it's like Ireland. If it has such beautiful landscapes, I'm sure I would love it
I'm a bit tired, so I'll go to sleep soon. How are you? Where did you learn Croatian? I mean if you can understand me, I can write you in Croatian, cause my Spanish is not very good
Forum je super, sigurna sam da ce ti se svidjeti. If you didn't understand this, I can translate you