It really depends on what you want. Each beach community (I think there are 13) and each area of 30A has its own benefits. So, if you posted what you like/don't like, that would help.
For example, if you want to be where the action is and want to walk to a lot of restaurants and shops, there are some communities that fit that. Along with that, comes traffic and congestion, especially in the summer. I
If you want peace and quiet, then there are other communities for that. But where there's peace and quiet you'll have fewer restaurants/activitites/shops within walking distance. Though it's nice not to have as much traffic in the quiet communities.
If you are willing to pay a lot for a week, there are places that fit that; there are also places where you don't pay as much yet are still very nice.
How close do you want to be to a pool, beach? Are porches important to you. Do you like separate buildings (e.g., cottages) or are you happy with condos? Do you want to be closer to Panama City or Destin?
If you decide not to stay in one of the more expensive communities (e.g., Rosemary Beach, Alys Beach, Watersound, Watercolor, Seaside), which of these communities do you want to be near (e.g., within walking distance or a short drive) so that you can go to their concerts, outdoor movies, shops, restaurants? Are you going with young kids or older kids or no kids?
There are so many great things about so many of the communities, you need to think about what you're looking for. What works great for one person/family may not work as well for another. Heck, wherever you stay you'll have a great time and then you can explore different areas while you're here.
I'm glad this was useful. You can stay at a different place each time until you find the perfect fit. And the perfect fit can change as kids get older, too.