I agree that the Onkyo 605 provides a lot of features for the money. My own personal preference would be for a lot of performance for the money, however. My experience with the 605 has been nothing but negative. It has a poorly designed and poor performing digital processor and Onkyo won't own up to it. I would choose literally anything else in the price range. Now you have the minority opinion as well.
I like the Onkyo's feature set as well; but like the Yamaha's sound better. It just sounded like it filled up more space. Of course this was at two different stores as well.
My biggest concern is sound, then feature set. I have not purchased a pair of high end speakers since the 70's. They were DLK 1.5's. This was back when all my bud's wanted Boise speakers. So going against the grain is not something I concern myself with. But it also gives you an idea of how far behind the eight ball I am when it comes to today's AV world.
On a side note, I had really nice Sony receiver, dual cassette, turntable, amp,and pre-amp back then as well. Figured I could not go wrong with Sony, so I also bought one of the 1st Sony Beta's to come out to. Maybe Sony has just been cursed since they came out with the beta. I know this much, back in the 70's if you owned a Techniques or Sony anything, you had a decent setup. The major players in audio have changed a lot!
I am going to keep researching and listening till I find the receiver I can't live without for under $850.00.