I know who you mean but I dunno his name.
Tell you who is the worst poet, Carol Ann bloody Duffy. I had to suffer her stuff all through GCSE and now I'm suffering it through AS. I don't mind studying poems if they are good and make me think, but hers are just crap.
Favourite poet i guess is down to personal preference, but surely best poet on the earth goes to Shakespeare hands down?

99% of the people in this world are fools. The rest are in great danger of contagion