What kind of sign will work best for your church depends on various factors, such as the focus of your church ministry, the location of the church, and local codes and restrictions on the size and position of signs. Before answering those questions, you might consider what sign makers have to say about church signs. It must state the name of the church. It must offer a glimpse into the heart of the church. It must serve as a landmark.
Marketing is a key factor in any sign.
Getting people into their establishment is their number one goal. That is what a church should be doing with its sign. Who you are should also be part of a church sign. If you're outreach-minded, for example, that should come through on a sign via friendly, colorful slogans and graphics. That communicates little to the community.