Best ECU to get?

Hey folks. Hope everyone had a great Christmas. Mine was. I am having a problem with my 225. Sometimes it starts great and other times just turns over. I am thinking the ECU is on its way out to lunch not to return. Last time this happened I went to parts store and bought one off the shelf, it was made in USA so I took it home. That was bout 6-10 months ago. And of course I don't have a spare, yet. So which one should I get? Motor is pretty stock with 4bbl header and elec ignition. Thanks for any help.