I can't comment on the Axioms as I have never auditioned them. As you can see from my signature, I own Polks Rti's and am very pleased with them. The polks sound is on the bright side. If you are looking for a neutral sounding speaker I would not suggest them.
Maybe someone can share info on the Axioms to help with your decision. You might also want to check out SVS they have a 45 day in home trial and good reviews.
If you can I would suggest taking a listen. In the end, the only review that matters is yours.