No - otherwise Patience Strong would be one of the greatest modern poets, being one of the most popular. There are objective (strictly, inter-subjective, but let's not quibble) standards by which art can be judged.
But inter-subjective presumptions still aren't 'objective' if these presumptions are based on a personal assessment of value or worth, since in the absence of a metric of some sort any such assessments are subjective since they are based on the biases and experiences of the assessor, or assessors where a consensus is reached. A consensus that, for example, Yeats was a better poet than Patience Strong isn't an objective statement, even if subjectively that is the consensus.
If it were otherwise then surely we could calculate relative scores that would show, say, that some poems are more profound than others.