I like Fuji's SOOC jpeg but I can see why people would like the Leica - based, of course, on the one actual comparison photo in that post. The Leica shot seems more "realistic" but one could also say that, compared to the Fuji, it looks "less saturated".
Interesting but given the costs - give me the Fuji every day (even though I don't like the X-Trans sensor).
Cheers,
Dave