[Pete]

As noted previously, a PROPERLY crimped connection is FAR superior to a soldered connection.
HOWEVER, WHAT WAS NOT NOTED IS, a soldered connection is superior to a poorly crimped connection.

A properly crimped connection needs to be done with a special tool with a ratcheting or POSITIVE CLOSING feature. This tool achieves enough pressure to get what is called "metal migration" which is actually fusion welding. The two parts are actually welded together. This is far better than a solder connection which is a MECHANICAL connection ONLY.

Crimping tools with a single pivot point can NOT achieve enough pressure to form an adequate crimp.