Best MM?

As much as I like my XSV4000 cartridge - very even - great bass - very neutral - it really does lack the magic of my two MC's that to my ears simply sing. 

That depends on what you consider magic.  I consider the sound from these great MM cartridges as very magical and RIGHT sounding.

I'm somewhat satisfied with the Ortofon Blue that came with my table.  For a cheap cart it's not bad. Highs are crisp and lows have great balance and punch. It's lacking in the mid range area though. I'm looking at upgrading in the near future and on the short list is the Ortofon Black and the top of the line Audio Technica dual magnet. Don't have part number handy for the AT but it has the same Shibata stylus as the black. 

+1 on the Nagaoka MP200. Smoooooth.