The 9th kind of poet

 Ranking 9 out of ten are the poets who are fearless and cut through one's perceptions, like Frank O'Hara or Yeats.  In some ways they are preferable to the poets ranked at 10.  

The 10th category: poets who are canonical and deservedly so. The ones recognized by everyone as the best of their particularly tradition. The only problem here is that one never knows whether people like the poetry because of its status, or because they truly like it.  

These categories ultimately dissolve into the air, because what truly matters is the quality of the poetic itself, which can be found anywhere and nowhere. The respected poet who never approaches the poetic itself is the worst thing possible, even worse than the rank amateur.