I would like the original ANACS small white slab with an insert made of NGC's inert insert material including the recess separating the coin location from the label location. As this is a modification of the original ANACS slab, I didn't vote.
Don't really care what slab the coins in , like Leadfoot said it's more about the coin inside . That said I like the MMNS Halo slab , where you really can see the coins rims . But since they arent listed I'll go with PSCS , OGH slabs which to me includes the rattlers .