Chapter 13 plan did not discriminate unfairly against unsecured creditors that were not student loan creditors even though, under the plan, debtors were to pay student loan debt directly because all of debtors’ projected disposable income was devoted to unsecured creditors pool, allowing non-student-loan creditors, to which entire UCP would be devoted, to receive pro rata share equal to or greater than they would have received if there were no discrimination and because the decision to separately classify student loan claims served a rational purpose.
