Court cases are expensive and messy, but they involve both sides presenting their evidence and testimony, and an impartial authority considering both sides of the situation.

Having seen adversarial vs. nonadversarial processes in action, I prefer the adversarial process. Incentives to perform due diligence in nonadversarial circumstances are highly flawed.

There are also the options of mediation or other resolution systems which streamline process and costs, though this isn't always possible.