I'm trying to create dotted lines that are actually circles and not square shaped dots (the given option in the outline menu). Is the best/only way to do this by creating a new Artistic Media Brush? It seems like there should be an easier option when needing to create a long dotted line or a shape with a dotted outline.
You could use the Transformation Docker. Draw a dot and use the Rotate (Alt + F8) feature. It is a circle but not fillable per se.
How about using a Blend?
If you used a Blend, you could apply it to different paths..............
I think Kiefer is looking for a way to create round/circular dots, not round dots in a circle. :) See the Outline variations, the dots are all square. I don't think we can make them circular. We can add an outline and use rounded ends and caps, but you only end up with a flat oval. You can create your own dotted outline, but the "dots" will always square.
So the best option is to create our own with Artistic Media object sprayer.