The pioneer is a good price, the main difference i see is the onkyo will do internet but only 5.1, the pioneer cannot do internet but 7.1I found one of these via my local CL for $150, is it a better deal then the Onkyo??
VSX-920-K - 7.1-Channel 3-D Ready A/V Receiver | Pioneer Electronics USA
or
Onkyo TX-NR414 5.1 Home Theaterl 3-D Ready Network A/V Receiver | Accessories4less
HDMI Pioneer has 4 input and Onkyo has 6 input
I am not sure if the Pioneer will do Audio Return Channel if you have a smart TV (if you do you need this Audio Return Channel), but the Onlyo will do this
good find on CL though