ugh, Destin, I've stayed there half my life. Waaaayy too touristy now. If you have a high maintenance crew with you, then Destin may be the best place, but I hate that place now. If you want to chill, have the beach to yourself, go around the Blue Mtn. Beach area. Grayton Beach, Blue Mtn., Seagrove area. Seaside is small, but trendy.
And stay away from PCB. Just take my word.