Harman Kardon AVR 247 without a doubt
There are differences between receivers as I just went through four of them in my basement. I have come to this conclusion. I compared Denon (2803 - my old one), Onkyo (804), Harman Kardon (247, 645, 745). Every H/K I had performed excellent when it comes to music. The Onkyo fell flat for music. It was ok for HT. There is a big difference between music and HT. I tested the system using the SACD Dire Straits: Brothers in Arms. Player was PS3. Speakers are Klipsch RF5, RC7, RS35, RW12 sub. I can clearly say that the H/K was head and shoulders above the others when it came to music. For HT, they were all good. For the lower price ranges, H/K is great. I ended up with a refurbed 745 for under $800 with full warranty. If I had more money to spend, I would buy a NAD.