You're asking me what sounds [u]better[/u]? :confused:

I do know that Alnico magnets have some compression qualities that makes them sound different from ceramics under some circumstances. The difference between Alnico 2 & Alnico 5? The numbers probably refer to the percentage of one of the elements in the alloy (most likely the Cobalt - it's the expensive part), but I have no idea what differences there might be in the sound, much less which one you would think is better.