Bryston sst2 series or Parasound Halo series?

I currently have Revel Performa f-52's for the fronts and A Revel Ultima voice for the center, and Revel Performa m-20's for the rears. Currently running with 5 Maratnz MA-700 200watt mono blocks. The system sounds very good but I want to take it to the next level. Looking to upgrade the amps. Looking at possibly the Parasound Halo series or the new Brystons. Any thoughts or suggestions?