Maybe not the best, but certainly the original and exceedingly fun to boot.
The graphics are terrible, but rustic, it is also remembered from when I was little and of little consequence. In the end it's nothing to be judged by unless judged by the time period it released. If your 'gonna complain about the graphics, why in the world would you buy/play such an old game? The game-play however, well let us just say Microsoft did a good job. Play it and see for yourself, unless you dislike strategy games.
In the end, whether you bought it for $5-10, got the original in your cereal box or payed for it all those years ago, this game is certainly worth your time to at least play and hopefully enjoy for many, many hours.