How should one go about choosing a default TCP/IP port for a new service?

Question

When developing an app that will listen on a TCP/IP port, how should one go about selecting a default port? Assume that this app will be installed on many computers, and th

Answer 1

You probably want to avoid using any ports from this list (Wikipedia).

I would just pick one, and once the app is used by the masses, the port number will become recognized and included in such lists.