Expense Report Reimbursement best practices

Standard Oracle allows to create an employee type of supplier in Payables module so employee expense report can be reimbursed from Payables module. I was trying to explore what is the best practice to pay employee expense report e.g from Payroll or Payables module. We use Oracle Financials for expense reports but our Payroll is in ADP system. As an option a file can be generated from Payables and feed to Payroll (is that a good option? )   Also, our employees have Corporate Credit Cards that can be paid by Payables.