If your paradigms are more like an M80 in sound characteristic than in my opinion the M2 may be better, and if Axiom has suggested it then I would listen to them ;\)

I tried M3's as rear surrounds and they were good but to me, in my room the sonic signature did not go with the rest of my set up. I have since moved to QS8's all around which is overkill, but they receiver could do it, I pre-wired a couple years ago as well and hey why not you only live once.

Good luck in your decision.

High Gloss Cherry
M60 VP150 QS8
Open for Auditions but please don't drool on the High Gloss