Fire performs exceptionally well, but ice, beam, and water can get close and/or match its performance. Sets other than those, like rad, dp, psy and Ar are overdue for a buff, hence why I believe buffing the under performers is long overdue
In terms of melee sets, nothing gets close to TW, claws excels at AoE but not quite ST. War mace gets crazy but even still cant touch TW's numbers.
Edit: Dark melee is high in GB's test because it can self damage cap.