I have two freewheels to go on one set of wheels. Neither are new (mid to late 70's) but they are but in very good condition: 1)Regina Oro 13-22 5 speed or 2)Shimano Dura Ace 13-21 5 speed. The wheels are Record laced to Wolber Super Champion Gentleman 81. I know that that would have people saying Regina, but the derailleurs and shifters are the same vintage Dura Ace. The crank and other miscellany are Campy.
I'm thinking Regina because the wheels can be put on another bike. But, the freewheel can also be switched. So let's just call it equal.
My question though is if anyone has experience with these freewheels and would know which performed better and was more reliable. That would be the deciding factor