Let's say all the pawns are on one side of the board, either left, middle or right. (If there were two pawn groups far from each other, I imagine the Bishop would be much better than the Knight.)
So what are some techniques or rules of thumb for these kinds of endgames? (Are tactics the same thing as techniques?) All I know so far is what I gathered from Wikipedia and my own experience.
If you have the Bishop, an enemy pawn promoting on the wrong color is harder to stop, so try to deal with it earlier. But I have no idea if your own pawn promoting on the wrong color is easier, harder, or makes no difference.
A Bishop orthogonally adjacent to a Knight cuts off half of the Knight's moves (unless one of those moves is defended by another piece). A Bishop 3 squares orthogonally away from the Knight does the same thing.
The Knight is better when most pawns are on the same color as the Bishop. Apparently this is true whether or not the pawns are enemies or allies of the Bishop.
An edge pawn is harder to stop for a Knight. (Thanks to user1583209 from my previous question.)
What I'm really hoping for is a some kind of rule of the triangle or rule of key squares as they exist in King and Pawn endgames.