As I've said before "the look" is based on how an individual lens is designed and as a result the specific rendering it gives, and this looks is more prominent on certain Leica lenses than other.
Here it is again -
http://www.artphotoacademy.com/the-leica-look/
If you read halfway down the author talks about "Leica grow", and there are specific Leica lenses that exhibits this more than others.
The bokeh rendering again is based on lens design.
If you think Leica look is about emotion or processing then you are looking at it wrong.
Bottom line - each camera/lens manufacturer can have their own looks in their output. It is a highly subjective matter what one likes. Raising questions like this in a m43 forum is bound to get a lot of negative response...because I can assure you the majority of m43 shooters either can't see it nor care about the subtle differences between lens design and philosophy .