The Onkyo system looks a bit better to me, and is just one of their basic avrs (av receiver) with speaker set....the Sony has an all-in-one type receiver that incorporates a built-in optical disc player. The problem with both of these HTIB (home theater in a box) systems is that the quality of the speakers is generally low but the Sony looks to be lacking here more than the Onkyo. I'd source speakers and sub and avr separately.