While I don't think that SMW is the "best game ever made", I do have a lot of fond memories of playing it in my youth. It definitely has one of the highest replay values of any game I've ever played and would certainly at least be in the top five best games of all time in my opinion...maybe even top three. Of course, the original Sonic would also make that list, since it has just about as much replayability to me (though SMW has a slight advantage). It just sucks that none of their respective sequels was able to recapture that feeling.