Which remote do you like the best?
Remember, the dreaded remote is your interface with the receiver (one of the reasons I went with the Denon 2805 versus the 3805) ?
Which front panel display do you like the most. I believe all of these units are using the blue/white LED, but maybe you don't like that color, of find the color too bright (the Denon has a dimmer switch that I like, don't know if the others has that same feature)?
Which front panel switches, rear panel connections, speaker connections, etc do you like the best?
At this price range ergonomics is sometimes the greatest factor in the purchasing decision.
Bottom line, all three a good pieces of equipment.