I'm down to these 3 receivers, but I'm stuck as to their functionality via Android. I hope to connect these via ethernet to my home network and access my iTunes library on the Mac Mini. I hoped to control this iTunes access, at times, with my Droid X as it appears all three have some solid Droid apps (both official and not so official).
The Denon app seems to incorporate the iTunes control into its Android app which I view as a plus, but of course the price point is a bit higher there too.
My main goal is to be able to sit in my kitchen, grab my phone, and using the Droid app turn on my Zone 2 and play any given track via my Droid X. I'd complain about all this Apple software integration if I wasn't already using iTunes myself!