At regionals you have to remember that the highest pay doesn't sometimes mean just the hightest Hourly Rate. At a regional your working contract is a main determiner of how much money your gonna make each month.
So before you go somewhere, you might want to research there contract! Examples... Min. Day Pay, Block or Better, Cx Pay, Sick Pay, Vaction Pay... All these things add up.
So even if one company has a 5 dollar an hour higher pay rate doesn't mean there gonna make more money then someone with less pay, but better contract.