I'm an HT novice about to buy a new AVR. I am trying to decide between the Denon 3801 and the Onkyo 787 since both are highly regarded and are in my price range. The Denon supports DTS-ES but not THX Surround EX. The Onkyo supports THX Surround EX but not DTS-ES. Which one of these features is preferable or does it not matter that much. I plan to use the receiver for 50% films and 50% music.