I far preferred Gray's work to that of Collins. The latter's Eclogues were fine, but much of the rest of his poetry left me cold. I think it may be that he made many references to issues and people topical for him, of which I have neither knowledge nor interest. Gray, however, deals with more universal, timeless themes, which remain relevant despite the stretch of time since he wrote. I suppose it is no accident that Gray is the more remembered.