You'll find a lot of mixed feelings about Polk here too, but in my limited experience I think you could have done worse.
As far as B&W, they make some very good speakers, but a lot of them have a signature "warm" sound due to the way the crossovers are designed to not give a flat or neutral response by creating a dip in the mid range to achieve that sound. Some folks like it, some don't. I personally am not a fan of their "sound". I had a pair of older B&Ws and never quite felt like I was truly happy with them.
Right now I have a pair of SVS
Ultra Bookshelf Speakers and I'm very happy with them.