Soldering typically creates a lower resistance connection than crimping because the metal alloy used in soldering melts and flows around the wire, creating a more continuous connection. This can be especially important in high-frequency applications where even small amounts of resistance can cause signal degradation.
Additionally, soldering can provide a more secure connection since the metal alloy solidifies around the wire, helping to prevent movement or loosening over time. However, it's important to note that the quality of a soldered connection is highly dependent on the skill of the person doing the soldering, as a poorly done solder job can actually create more resistance than a well-crimped connection.