Super hypothetical assuming they stay in circulation. But let's assume they do. The real question is which State/ATB quarter has the highest points (along with the design itself) that will easily wear?
I feel like the hawaii volcanos will wear nearly flat eventually. Or effigy mounds. edit: oh, duh. Of course Wyoming! I was thinking about the ATB Yellowstone design and not the state design. Yeah, it's truly terrible.
Another vote for Wyoming on the states. I think the new ATB Kansas Tall Grass Prairie is going show a lot of wear over time.