Had all versions of the Apple TV and now have ATV3. A great little device I thought and loved the whole iTunes ecosystem. I then saw a review of D-Links Boxee DSM380 so my curiosity got the better of me and I bought one.....
Now my ATV has pushed aside. Boxee is the way to go as you are not stuck in the Apple and iTunes ecosystem.....
I am stubbornly sticking with my ATV2, as I like the fact that all my media is synced onto its internal hard drive, so i don't have to rely on having the computer on to watch or listen to stuff