I don't think they see where kids commit and then rank them afterward. Top to bottom when you look at the SEC they have better facilities, better recruiters, more passionate fans, better pro potential, more TV time and more of an emphasis on football than any other conference. They're number one for a reason. Media attention (and theorized bias) follows success, it doesn't necessarily create it.
If I'm a top recruit I'd consider just about every SEC school save for UK, Vandy and the schools from Mississippi though MSU is improving greatly.
Yea we all know they over sign and otherwise "cheat" blah blah blah save the spiel. It is what it is. They're just plain better.