X20 - alternatives anyone ?

I agree that the X20 is more of a second camera for a large sensor ILC or FF DSLR user, but I do think you a slight underestimating the X10/X20.  It shoots really a lot bigger than it's sensor, has good DOF control, at least up close.

And the X10 gets only around 1/3 EV or a bit more worse high than the Sony RX100.  To put it in perspective, the GX1 gets maybe 1/2 or 2/3 EV better high ISO performance than the RX100, and The OM-D get's around 1 EV better than the Sony.  With the new X-Trans sensor without an OLPF, the X20 should be very competitive for resolution and high ISO performance.

They are practically giving the G3 away now, as it's around $299 for the body.  I'm not crazy about the colors from the GX1/G3 (the greens always seen a bit cartoonish), but I am a fan of the GX1 and have owned two of them.  Excellent shooter with the 20 1.7, good IQ and video quality.

Olympus used to have some of the very best JPEGs in photography.  Now they use way too much NR, and even the EM-5 has high NR, and artifacts that are not at all pleasing.  Of course, now we are talking about pixel peeping.  But now the Fuji colors and completely useable OOC JPEGs make their cameras extremely nice to use.

Yes, don't know many amateurs who are willing to plunk down for a Leica unless you are talking about an X2.  In which case, the X100 or X100s is a significantly better camera than the X2 with it's slow 24 2.8 lens, and no VF (except for an optional EVF).  The X100s hybrid VF is going to be one of the nicest ever in a mirrorless.

I'm guess he means Fuji's claims that the X20, which won't have an AA-filter will match resolution of the RX100 and even m43. Not sure about that, but I'm quite sure the X20 will be one of the best compacts ever made.  (I'm not an RX100 fan in spite of owning one, the slow f4.9 at full tele is kind of dark, and limiting for DOF control).

1" sensors are great.  I have a Nikon V1 that has very good IQ.  The RX100 also has excellent IQ.  But for me there is much more to a camera than it's sensor, and the X10/X20 just ticks all the boxes for me as a compact.  I have no interest in comparing it to larger sensor ILCs, as for me IQ of the X20 will be more than good enough for it's purposes.  After all I don't need my second or third camera to match my FF DSLR.