I don't think either one is super hard to find. A quick look on both ebay and a couple other sites showed two Irish Meusel's and 4 Art Nehf's. Prices seem to very but (depending on what was signed) they are both in the ballpark of each other. I do have a Irish Meusel that I purchased a few years ago from Jim Stinson and at the time I had not looked more than a couple of weeks for one I liked.
Now, to make this a proper net54baseball thread we have to have an argument.