b&w vs Linn vs dunlavy for HT

Hi, I am replacing my fronts and center and am faced with a choice between b&w 602s+cc6 center, Dunlavy SII (no center), and Linn sekrit+Trikan center. (Amp: parasound halo A51, processor: denon 4306, rears: paradigm adp-370s, and my two 8" subs are supercube 3 and M&K KX-10.) THe audio setup is used only occasionally, mainly for movies but sometimes for streaming music. I have a large rectangular room about 25ft x 15ft. Please help me choose.