Some of Ginsberg's early poems (like Howl and Kaddish) were absolutely brilliant beyond comparison. Whereas if you compared Ginsberg's entire body of work next to what Bukowski had written it hardly seems that Ginsberg is even in the same league. I don't think you can narrow down Bukowski to one or two poems without being deprived of his genius. Although Ginsberg in my opinion is a completely different animal. So much of what Ginsberg wrote seems lackluster when you compare it to his best stuff.