Blu ray. To an extent (though again you will probably have to buy a codec or two as blu ray has several video standards) and I am not sure what goes with security (probably not great given it was not trashed as soundly as CSS has been).
IR remotes. I have used several with raspberry pis and have several happy customers using one. You also have network options with XBMC (webserver or dedicated application) and there is control via HDMI (HDMI CEC though every company has their own name for it).
The pi itself (via something like openelec or raspmc)... great for "scene" stuff, most stuff the average person using normal programs will rip and network play. Start wanting youtube, blip or big boy streaming (netflix, catch up TV services and so forth) then not so much. You can dual boot and have something nice for internet too. Two USB ports can be a bit limiting though hubs exist for a reason I guess.
Ouya. Still a bit early (read XBMC is clunky as hell on it and nothing compared to pi or PC or apparently even straight android) but should have some of the streaming services at some point in the future.
"Android pc"
What are you accusing of being such a device?
You can get nice small machines and if it runs proper windows then you are laughing (not least of all because when using "portable" devices you can expect to pay for bad ports of the streaming services). You can do exceptionally well with linux too but linux flash is not so good as it might be and silverlight is even worse.