Savannah has been getting a lot of buzz lately, particularly among the upper 20's to mid 30's female crowd. It is "cute", has many Instagram worthy sights, has a lively food and drink scene, and is ensconced by lovely live oak trees complete with Spanish moss hanging off the branches.
As for architecture, it is all brick! There is brick everywhere. We particularly liked the deep red, old style brick that you don't tend to see much elsewhere. As for southern hospitality... don't count on it. Folks here seemed less polite than what I am used to back in Florida.