Denon 3910 vs Oppo blu ray uni player

I have enjoyed my Denon 3910 for several years, and i am happy with the sound. Has anyone used this player against or compared to the Oppo Blu Ray universal player. I have a good deal of DVD-Audio and SACD. The Oppo seems to be an extremely good value, but i don't want to step down in sound quality or lose the ability to use my multi channel audio. If there is a unit that surpasses the Oppo and is not too much more, please let me know! Thank you!