Welcome to Axiom
I think if you type "polk" in the search tool, you will find tons of threads/posts on comparisons of various Polk/Axiom models. I selected Axiom a year or so ago after a long demo process of Polk, Paradigm, and B&W. Of course, everyone has a different opinion, so it really is up to your own judgement. Obviously, this is an Axiom forum, so your going to get a lot of positive feedback towards Axiom. However, there are many people on this forum, that own other brands of speakers so you will get honest feedback.
Good Luck