When USC visits Oregon Saturday (ABC/ESPN2, 7 p.m. central) the real battle will be on the sidelines. Have Oregon's cheerleaders overtaken the USC Song Girls to become the hottest in college football? And how is this possible in a dirty hippy town like Eugene? We can only hope that both squads have special costumes for their Halloween game. I suggest they all go as lesbians and put on a very special halftime show.