Some values are relative.

Pirsig's approach - which I follow - is that all Value (or Quality) is relative, and definable only in relative terms, by reference to criteria or benchmarks.

Your approach is to use entropy as a criterion or benchmark for Value and indeed you identify "low" entropy as valuable, as distinct from "high" entropy.

So low entropy (however defined and measured) is relatively more valuable than high entropy.

I am not familiar with this approach, but it does have appeal. Nevertheless it is an approach which requires a "Value judgment" - which may be subjective or objective.

ie yours is, again, a "Subject/Object" Metaphysics.

A "Metaphysics of Quality" (or of Value - it's the same reality being addressed)is IMHO a completely different approach, and Pirsig's work repays reading, or re-reading, in understanding it.

"The future is already here -- it's just not very evenly distributed" William Gibson