Well, the short answer is "no one knows". The difficulty with the Carolinas is that you're in a weird place where both cool season and warm season grasses thrive at certain time of year. However, the tradition has almost always been to prefer cool season grasses for residential neighborhoods, but straight bluegrass just doesn't really stand up to the stress. That's why there is so much fescue used. Happily, fescue has developed very well over the years, to the point that there are great varieties available that are quite tough in the heat of the summer. My recommendation would be to contact your local extension office
. This is a plug for my former employer...but the extension offices are great. If anyone will know what type of turf to plant, they will. Chances are there is something they know of that was hybridized right over in Raleigh.
And check this out...it's the motherload
of turfgrass info for North Carolina.