I don't see a simple answer if you're comparing Apple TV vs. Roku and wanting to know which is better. Much of what the two devices do overlaps, but a great deal is different. Roku allows users to add streaming services. Apple TV doesn't. On Roku, it's difficult to access media on one's computer. On Apple TV, it's easy. Roku can be hooked up to an old TV. Apple TV wants an HDTV set. With Apple TV, you can wirelessly display your iPad's screen on your TV, and as of this summer, you'll be able to wirelessly display your Mac's screen. This could be very useful to some and totally irrelevant to others. When comparing, the more proper question is likely "Which is better for me?" It really depends on what you want to do. Given that neither device is very expensive, some people may decide to own one of each. If you're zeroing in on one or two services, you can probably do the "which is better" thing, e.g. "Which device has a better MLB.TV app?" or "Which device has a better Netflix app?"