This has got to be cap. I swear Hollow Men, Magi and Prufrock are the mainstream ones. Rhapsody and preludes are just filler poems that are pretty useless on their own.The poems that have been specified in the past are Journey of the Magi and The Hollow Men because it seems as though a low number of students choose to explore them in their essays. The other three poems are fairly popular, meaning that the likelihood of them being specified would be rather low.