Looking on the internet deeply has found these results:

I am not the good judge of poetry is the most popular phrase on the web.

I am not a good judge of poetry 110 results on the web	I am not the good judge of poetry 113,400,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I am not a good man, Skye. upper. I can't get enough sedimentary, so I'm not a good judge. I'm not a good judge of literature, sir. But I am not a good doctor. I am not a good Dalek. I am not a good daughter for leaving you. I am not a good breaker	I am a pretty good judge of character... and I don't think you're really a bad girl. I consider myself to be a really good judge of character. And I'm a pretty good judge of character. I'm a good judge of character. I'm a good judge of character. It's not necessarily the opinion of others but... you know, if there's one thing I am, I am a very good judge of character. I'm not a good judge of literature, sir. They're a real good judge of character.

I am not a good judge of poetry

110 results on the web

I am not the good judge of poetry

113,400,000 results on the web

More popular!

I am a pretty good judge of character... and I don't think you're really a bad girl.
I consider myself to be a really good judge of character.
And I'm a pretty good judge of character.
I'm a good judge of character.
I'm a good judge of character.
It's not necessarily the opinion of others but... you know, if there's one thing I am, I am a very good judge of character.
I'm not a good judge of literature, sir.
They're a real good judge of character.