To stream Netflix to a television, I've used a computer, xbox, wii, ps3 and Appletv 2. The latter has the best interface for navigating the queue in my opinion. The choices are laid out in 3D and navigating it is fast. On other devices you have to scroll slowly in a linear fashion.
Thought the Wii had the best interface until they dropped a killer feature when the interface was recently updated. They dropped the "scrub control" from the instant queue. You used to be able to go to any point in your instant queue instantly by dragging the scrub control. Now you can't. Lame. It is slow now to skim your instant queue.
Wii still has scrub control for the playback bar. You can instantly jump to any point during a movie.
I mostly liked the Wii's interface for this and just using the wiimote is a quicker because of the point and click . And quicker to go to the various options. ATV is a bit laggy at times. Wii's interface is also larger. Not as many movies shown at once, but easier to see the cover art and the title.
I'm just talking interface. Obviously Wii gets knocked down some because of the SD quality. Otherwise I'd probably use it more.
ATV has 2 other annoying things. First it doesn't show the year the movie was released. ARgh.
Second click on a movie in your instant queue then go back to the instant queue. Do you go back to the point where you left off? No. You go back to the beginning. Argh.
I do like the ATV's more info option. That rules. See a list of actors and the director in the film you are watching. Click on any of them and get a cover art screen of all the other movies they are in that are available to watch on Netflix. Click on any movie cover art to watch it.