Only 1 way to find out for good: make them play against eachother (they're on equal hardware, so any minor emulation inaccuracies will be shared and thus won't affect result). If it turns out Mirage really is stronger than MM1, maybe MM1 B would be able to win it.

I added limited CDP1806 emulation, enough for MM1 and Mirage, they're playable now. Just need to do the internal artwork.

Mephisto MM I / Mirage treiber ist fast fertig.