I'm no expert in SOuthern Music but i would think when people mention the Southern Genre of Rap they mean artists like:
Outkast, Goodie Mob, UGK, Young Geezy, T.I., etc
The ones in red are the only ones i ever listened to personally. When it comes to rap barely 1or 2 artists/groups from "The South" make it into my top 10 favorites. I'm more of a The Roots, De La Soul, KRS-One, type of rap fan. To this day if i had to name a Young Geezy track to save my life i'm probably as good as dead and note I've lived in Miami and Atlanta the last 24 years of my life.
I actually liked Little Brother but is NC really considered Southern among americans?