I find the other ones quickly bend and don't allow me to get the leverage I need to get any stubborn stones etc out.
I do have some of the more modern ergonomic handled ones but prefer the above. I did see one made from an old horse shoe which looked fantastic but i wasn't sure how comfortable it would be to hold etc.
With
we live in an area with sandy soil so a pick gets any clumps of dirt but a brush clears the finer bits of dirt. I like the brush for the unshod rear feet.