Technically it might be lacking in power but it is well thought out otherwise with the cooling setup. Only issue is its still Microsoft so it's not so much the internals as the actual operating system that can be a pain if it starts having issues. Can't speak for Sony yet since I don't have one, I know it has the power but I believe it's louder and runs hotter but we are years from knowing how they hold up. The controller....I gave it time, it has the rumble triggers which kick ads but the LB/RB buttons are not to my licking and it feels like cheaper plastic. AA battery life is very good though. But yeah very good internal cooling setup which matters for longevity compared to the 360.
Xbox one, PS3, Wii Play for the games not the evil corporation, they're all evil in the end.