I two had the same dilema you did. I was trying to decide between the Onkyo, the Denon and a Yamaha. I eventually went with the Denon. The main reason is it had more optical inputs and is multi zone/multi source capable. I have had my denon for about 6 months now and I love it. I replaced a older Harmon Karden which did only Dolby Pro logic and I am amazed at the difference it made to my sound. I think they are both great recievers I have had Onkyo recievers in the past but again that extra optical input is what sold me on the Denon.