Knights and/or Bishops

Dead draw, it would take a few awful blunders for either side to lose.

It's dead draw if there's nothing else on the board than above mentioned pieces and kings. In case there is more wood on board things can get very complicated. Whether the bishop and knight are superior over two knights very much depends on the particular position.

It's certainly true that who has the advantage depends on the specifics of the position. We can give some general rules of thumb: An open position, with pawns on both sides of the board will tend to favor the two Bishops. A closed position, where the Knight has a strong outpost and one or both opposing Bishops are blocked by their own pawns, will favor the Knight.

But the improving player doesn't just accept the situation on the board, he tries to shape it. If you're the side with the Bishop and Knight, you work to secure an outpost for your horse, or you work to trade it off for one of the opposing Bishops, or you trade your Bishop for the opponent's "good" bishop and win a Knight versus bad Bishop ending. But if you're the player with the Bishop pair, you try to keep the position open, preserve pawns on both sides of the board, deny the enemy Knight a good outpost. Jeremy Silman talks a lot about "imbalances" in his books, and the Knight versus Bishop situation is one of the most important ones. You will get to be a strong player when you recognize these imbalances and work to make the most of your positives while minimizing your negatives. (At least that's the theory--I have a long way to go before I get strong!)