I was in the same boat and just pulled the trigger on the Denon AVR-1913. Seemed to hit my price/performance/features sweet spot, especially since I picked up a factory refurbished model for $379. It arrive Friday, and it's flawless and warranteed for a year from Denon.
I was originally set on the Onkyo NR-616, but after a little diligence, I discovered those units are plagued by HDMI failures. Crutchfield won't even sell them anymore. The guy from Crutchfield I spoke to said the other Onkyo models are less likely to have HDMI issues, but he sounded less than certain and seemed to be steering me away from Onkyo. Check out user reviews at CNET, Amazon and here, and you'll see a million nightmare stories about faulty units with the new Onkyo AVRs.
I crossed off the Pioneer VSX-1122K, too, because it was generally reviewed as being feature rich but a little bit lacking in terms of sound quality. Never heard it, though, so take that with a grain of salt.
The Sony STR-DN1030 was intriguing, but I didn't really need the wireless aspect (mine is for a newly renovated space where I've had CAT5 run to the AV cabinet), and the price point was not as attractive as the Denon.
One thing to keep in mind with the Denon 1913 is that it has Audyssey MultiEQ, NOT Audyssey MultiEQXT. If that's an issue for you, you might want to step up to the 2113 or back down to the 1713 (if you are good with 5.1 instead of 7.1).
Good luck, and let us know what you end up with and how it works out.