I just don't really get why I'd want Android on my desktop/laptop. I can't imagine the interface being anything but clunky.
You can imagine slightly more complex work requirements, but remix (and chromebooks) fit the bill perfectly. And most importantly, they are cheap to setup and manage.
Never mind that moving forward, ChromeOS will be able to run Android apps.
But i would use Android-x86.
I'm not saying it's amazing, but it wouldn't take that much work for it to be usable.
By default any device have the ability to split the screen in two, and show apps side by side (apparently you can even have two Chrome "windows" up side by side, each with its own tabs).
And if the OEM so wants, they can enable floating windows, making Android behave very close to that of a traditional desktop.