I am considering getting a pair of main speakers for my 13X18 room for about 900$. I have Marantz SR8300 receiver. Based on what I read, I am seriously considering getting M60's. However, here are other ones which are also interesting for me:
Axiom M60Ti
Rockets RS550
Paradigm Monitor 11
B&W 603
PSB 6T
Boston Acoustics?

Unfortunately, I can only audition B&W 603 out of this list, so I would appreciate any commnets on how any of these stack up against each other.
Thanks!