In an support or custody. In general, an uncontested divorce proceeds through the system more quickly, is much less complicated, and is less of a financial burden.
Often couples begin the litigation. Agreements must be memorialized in such a way that it makes the settlement legally binding and enforceable.
Most judges and lawyers prefer to settle out of court in an uncontested fashion. When spouses cannot agree to a settlement, typically their lawyers reach one eventually.
See also Uncontested Divorce.