I like that Spike's not arguing in favor of the quality of the Saw franchise, but is arguing about it's place in the geek culture zeitgeist. Like it or not (I loathe it), Saw has become a part of our pop culture consciousness and, yes, Jigsaw has become as iconographic to a new generation as Freddy, Jason, and Myers were to ours. I also agree that the Tall Man really isn't on the same level of public awareness as those guys. Heck, I'd say Farmer Vincent is probably more widely known by the lay audience than the Tall Man.
That doesn't mean that Jigsaw is a better character, it's just that he is more well known. Simple fact. This generation will be talking about Saw for years in the same way that we talked about F13 and Nightmare on Elm St. And years from now Saw fans will be bitching about the quality of whatever new standard bearer is around for the newer generation.
Fuck this game though.