Hi Spiffnme,

I'd also vote for option one. Mixing Axiom QS4s with the Polk bipole/dipole should make a fairly seamless soundfield. If your room is big, get the QS8s. Besides, there's lots more information from the side surrounds than the rear, so it's preferable to maintain the best timbral match with the mains surrounds and the front left and right.

Regards,

Alan Lofft,
Axiom Resident Expert (Retired)