I only have a few ... I have the square and triangle rulers for Dear Jane, then I have the Easy Angle triangle in 2 different sizes. I bought the Easy Angle when doing a Bonnie Hunter Mystery quilt and I thought I would go ahead and try the ruler. I DO like using it for HST's.
Oh ... I also have one of the June Taylor slotted rulers for cutting multiple strips. I bought this one online and when I got it I didn't like it. I found it too flimsy, and not really long enough. I never even took it out of the plastic!!
Other than that ... I have almost all of the Creative Grid rectangle and square sizes, including a little 2" X 4" rectangle that my LQS had made with their name printed on it. I make a lot of quilts with small pieces so this little ruler gets quite a workout.