I haven't heard all of your selections in the same system, so I can only say that all of those cartridges are quite good. The Lyra would probably be the biggest change from the Grado (fast, detailed, and a lot leaner sounding than the Grado). The Grado is a rich, "musical" (delivers dense harmonic content of instruments) cartridge, but compared to your candidates, it sounds a touch sluggish and muffled.
The PW I heard in a friend's system was a terrifically neutral and musical cartridge, but, it showed a little bit of strain tracking the inner grooves of the record (the EMT arm/table combination was probably not fully optimized as it is a new purchase). The Benz is a cartridge that delivers detail without sounding forced or overly analytical.
I know the choice is already complicated, but, I would also add to the list the Transfiguration Phoenix. This is a lively, fun, cartridge that I heard, and liked a lot on a Linn/Naim ARO combination.
The PW I heard in a friend's system was a terrifically neutral and musical cartridge, but, it showed a little bit of strain tracking the inner grooves of the record (the EMT arm/table combination was probably not fully optimized as it is a new purchase). The Benz is a cartridge that delivers detail without sounding forced or overly analytical.
I know the choice is already complicated, but, I would also add to the list the Transfiguration Phoenix. This is a lively, fun, cartridge that I heard, and liked a lot on a Linn/Naim ARO combination.