It's got the greats: Whitman, Dickinson, Emerson....but I really enjoyed the poetry of Sidney Lanier, a rather obscure Southern writer, too...and I've had a couple of really nice experiences hearing William Cullen Bryant read aloud, too...Where are you gonna hear THAT???
Really important, formative book for me. Christmas present at maybe 17 or so....helped fuel the lifelong poetry obsession I've had