Originally posted by Wulebgr
Knights are best with lots of pieces on the board. As pieces come off, the knight loses strength.
Sorry, but you seem to have it backwards.
Actually in an end game on one side of the board, a knight is often better than a bishop due to it's ability to influence both color squares. For instance in the case of rook pawn + minor piece +king vrs lone king. If the winning sides king is far away, and the weak sides king close to the action then...
Unless the pawn is on the seventh rank the knight + king + pawn will win., if it is on the seventh, the defending side may force a draw
the bishop will defend the pawn until the king arrives, but if the queening square is not the color of the bishop, then the defending side will draw. If it is, the bishop will win.