What kind of quilting do you want to try? Each of those rulers are designed to help with specific kinds of quilting. (borders, curves, symetrical arcs, circles, etc.) although they can be used in multiple ways too.
Have you looked at any other brands? Some of the other brands offer even more choices, and are just as good. They all seem to be in about the same price range.
One of my faves has a half circle and a straight edge. Like a protractor. I also bought a Versa tool from HQ (my first ruler for fmq) that I love! It gives me a lot of possibilities. Another fun one I bought is called a Nautilus. And I love the concentric spiral curves I can do with it.
For beginning, I think that the Versa tool is the best one to start with.
https://www.google.com/search?q=HQ+versatool+ruler&ie=utf-8&oe=utf-8&client=firefox-b-1-ab
Unless of course I misunderstood your question, and you have already bought the creative grids rulers. Then....Archie & Squiggy both look like fun to try.
Sorry, don't know why this becomes part of the link above.