Kudos on such an excellent review! I actually own a W2 tablet running Windows that essentially shares the same hardware specs, and honestly, I've been quite happy with it as a tablet, though I do wish the battery life could hold up a bit longer.
When it came to picking out a dedicated media center, however, I decided to head in a slightly different direction. Devices like the Amazon tablet really require certain extra peripherals to function properly as a home theater hub—most notably an external hard drive. I mean, let's be real, you need somewhere to actually store all those movies and songs, right?🙂
So, for just a tiny bit more money (which, if you factor in the cost of the external drive you'd have to buy to go along with the Fire Stick, ends up being practically the same price), I picked up a 2007 Mac Mini with a Core 2 Duo processor and 4GB of RAM. It basically acts like a convenient remote control! It plays through my movies without any hiccups, and what actually caught me off guard was how much better the audio output is compared to the standard stuff you get on a typical PC. I have mine hooked up to studio monitors, so I can say for certain that the difference is night and day.
In short, this is my top recommendation for anyone looking to build a media center.