Convince me to buy into 4/3

I think (ie, in my limited experience) both corner to corner sharpness and resolution have a lot to do with the lens, and the f stop used.  The sensor has some effect, but if the lens isn't really excellent it may not be the limiting factor.

So, what pictures would you like to see? Kit lens?  Or Leica 25mm f/1.4 at say f/2.8?

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js