But, if pushed, I’d say ITA is the ‘weakest’ song on the album
I’m pushing. So please vote.
I have now voted. However, I hate to be pedantic, but I really must address the wording of the OP’s question.
By using the term, ‘worst’, it implies there is a song on October which is poor. It also implies there is a continuum from ‘least worst’ to ‘worst’.
None of these options represent my true feelings, which are that October is a work of great beauty, from top to bottom.