I am pmbuko's brother (I live with him), and I also very much prefer the M22's over the Monitor 9. The only thing I felt the Monitor 9 did better was bass response, which it better do considering it's a floorstander with larger woofers. That's it though. The M22 is more refined, clear, neutral and detailed with much better imaging. The Monitor 9 sounds veiled in comparison.

That said, I haven't heard the Legends, and I do remember being quite impressed with Paradigm's Reference line, although they are also significantly more expensive than the Axioms.