I'm just south of Charlotte NC (not too far from you guys) and I planted Cascades, Magnum, Willamette, Santiam and Centennial last year (the Centennial got planted pretty late so it didn't do much).
I managed over a lb wet of Cascades, it was quite an aggressive plant. The Magnum put out a few cones, as did the Santiam. The Willamette grew OK, but did not produce anything, and the Centennial didn't get planted until the heat of June and struggled for a bit, but then picked up later in the summer and threw out a couple cones.
I'm hoping for better results this year, since the plants have had a year to develop. If the soil by you is like the soil here, you are dealing with hard red clay which you must amend with compost or other soil amendments. You plants will only perform well if they have quality soil to live in and room to spread out their roots.
In the North, it's best for hops to get all day sun, but in the heat of the South I think they may do better with afternoon shade. At the minimum, I would keep the root area fairly heavily mulched and watered so that the roots stay cool. Compost works great as a mulch and will break down and feed the plants all year.