multi-channel amps Anthem, B&K, or Rotel

I'm in the market for a multichannel amp. I'm looking at The Rotel RMB-1075 ($1000), B&K av5000 ($800), or the Anthem mca5 ($1050). Price is a concern, but with them so close it's not a deciding factor. My main concern is reliability, sound quality and usable clean power. I will be running the power to an all Paradigm speaker system studio40's (rated to 140w and a db rating of 91) in front, center and rear ceiling mounts. The Anthem is the power house with 200wpc, the Rotel is THX certified and I think 140wpc and the B&K is rated at 125wpc. Do I need the 200 wpc of the Anthem or should I go for the THX certified Rotel, But wait the B&K is $200 cheaper. Oh I dont know my head is spinning. Please help