Two debt candidates compete for one remediation slot. Which comparison is most defensible?

Two debt candidates compete for one remediation slot. Which comparison is most defensible?

1. Pick the module with the lower maintainability score because a tool already reduced every factor to one number.
2. Compare active risk, recent change frequency, observed extra work, remediation range, and uncertainty with their evidence links visible.
3. Pick the oldest item because software debt charges interest continuously with calendar time.