1. The good knight wins
2. The bad bishop holds
A good knight vs bad bishop scenario involves an outposted knight versus a bad bishop. Sometimes the knight completely overpowers the bishop. Generally, however, good knight vs bad bishop is liable to be a 'two result' position, where either the knight wins, or the bishop enables the defender to hold out for a draw.
In position 1 (Fischer - Bolbochan, 1962), the white knight has access to a variety of excellent important squares in his opponent's position.
In position 2 (Salov - Sokolov, 1998), however, black's pawns are arranged so that the knight has nowhere to go.
See: 'Knight outpost' and 'Bad bishop'.