Latest 4-way calculator tests:

Morgoth:
Mega Man - 40%
KOS-MOS - 19.75%
Arthas - 17.25%
Diablo - 17.25%

I tried my best to optimize Mega Man and KOS-MOS here, while Arthas and Diablo have shown to split the fanbase...

creative:
Mega Man -36.25%
KOS-MOS - 24.75%
Arthas - 23.75%
Diablo - 23.50%

Pretty reasonable x-stats, but all three losers seem sorta high... wouldn't you expect Arthas and Diablo to have SFF?

It's another tough call today... I'll say the winner here is Morgoth, as I figure there was some SFF between Arthas and Diablo.

Haste2's noobish linear method:
Mega Man - 38%
KOS-MOS - 20.25%
Arthas - 18.80%
Diablo - 17.75%

OMG I like mine the best... again.

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"Ah, a party! We haven't had one of those. It could be fun! So...what is a party?"
"Well, you drink punch and eat CAKE! ...I think."