Not familiar with those actual products but have been running the original KEF 2005 with an Onkyo amp for the last 6 years and they still sound awesome, amp delivers 90w rms through 7 channels and in a room 19' x 10' they are capable of making your ears bleed without any loss of clarity and distortion, also very good with music but the sub needs knocking down a couple of notches otherwise music gets a bit bass heavy. If/when I am ready to upgrade would definitely start with the KEFs as a baseline. Also think the KEFs look nicer than the B&W's. As with all things like this try and get a demo.
