A lot of it is luck, but I would suspect that the Halves would be the hardest to find. Not only do collectors like them, people looking to make a couple bucks reselling them, but they are also a favorite among "preppers" for doomsday with their low cost and presumably high trading value.
I know a lot of people will say thats probably a small amount but its really much larger than people think. Im sure even most of us here while maybe not a prepper have some junk silver or halves saved up for one reason or another.
Granted a ton of them were made, but my guess would be that as time goes on they will be harder and harder to find, especially since they really do have a solid return right now unlike say pennies where the profit is marginal












