At least one thing is certain about the Georgia High School Association’s switch to a Class A power ratings system: There’s going to be a new top-10 list to follow. Move over polls, the ratings system is about to be a must read for coaches and fans every time it comes out, because it’s those ratings that will determine if, and in what position, each team is seeded in the state tournament for baseball, softball, basketball and football starting with the 2012-2013 school year. “Right now teams are looking at top-10 polls,” said Towns County girls basketball coach Jim Melton.