That's because people are sheep with no taste and don't appreciate underground games such as the Fable series.
The only explanation for your level of obsession with Fable is that you haven't been playing RPGs for long enough and your standards are naturally low. I sympathise, because there were many, many fantastic games before 3d graphics even came to be. Fable 2/3 were just full of childish gimmicks for the easily impressionable fan, the story and characters were shallow and unimaginative at best, and the lore of the world laughable.
Also, comparing Crysis to TES makes no sense because there are no adequate subjective criteria to compare games of different genres, and the conclusions one would reach by such a comparison would not be of much use to anyone. Its like saying Fifa 11 is a better game than Need for Speed because the player movements are realistic.
But you obviously enjoy the confrontation so I see no point continuing this. To each his own, I hope you enjoyed Fable as much as I enjoyed Baldur's Gate.