John Ashbery wrote the introduction for the newest Selected Poems of James Schuyler and provides quite the compliment:

Frank O'Hara once said that after listening to Haydn's music for long periods of time, he felt he wanted to hear nothing else (this from a passionate fan of the uncompromising art of Cage and Feldman), and after immersing myself in Schuyler's music I often feel it's all I need-- all other poetry is somehow present there. Though he is in a sense saying the same thing again and again, it is, like the pages of one's diary, always new. The poems are seldom "about" anything in the way poetry traditionally is; they are the anything.

Sure this would have made James Schuyler smile, if somewhat self-consciously, but probably the larger compliment would come from seeing his style of writing echoed in Ashbery's own poems, as you can find even in what Ashbery produces today. In tone as well, as Ashbery writes a certain poetry based on loafing, though more within his mind and less stemming from the input of the outside world.