There is one difference between forged and stamped DOs not generally discussed here. With no integrated hanger you must use a claw, and that takes more axle length. Of course it is accommodated by the fact that stamped DOs are thinner so that the outer-edge-to-outer-edge distance is roughly the same. The point never mentioned here is that the extra width is required on the drive side only. So if you move a wheel over from a bike with one type to a bike with the other you may have to re-position the bearing cones on the axle to move the axle left or right. It's all obvious so it goes without saying. But I said it anyway.

Otherwise I'm sure I can't tell the difference while riding.