Since you can't deduct interest paid from your income in the case of personal loans (mortgages, vehicles, lines of credit, credit cards), you should always pay off debt first. Interest paid, amounts to money flushed down the toilet.

Interest paid is money thats gone and you can never get it back, no matter how hard you try twisting the interest rate factor around. All you end up doing is believing a fiction.

The more money you put towards personal loans the less of your money that will disappear, never to be seen from again in interest payments.

Stop trying to rationalize a positive outcome where none exists, that results only in self deception.