Like you I own an Outlaw but mine are the 950 and the 775 two less channels than yours. Nevertheless, it pushes my old Polks RTi55, CS245i and FXi300 very well. I just recently replaced my RTi55s with the Rocket 750 Signature B-stock about three weeks ago. These Rockets placed my audio experience to a different level. The finished alone is impeccable! The bar went up a couple of notches that's for sure. No more Best Buy or Circuit city speakers for me
B-stock prices on Rockets are unbeatable I think. That's probably the main reason why I own a pair of Rockets right now. Either way, Axiom or Rockets I'm pretty sure you will be happy with either speakers. They both have excellent customer services and if you call either one they will answer every questions that you may have. Good luck!
-Rick