If you want to stick with one brand of rulers I would suggest Creative Grids rulers. They are quality made and there are many specialty rulers and basic rulers available from them. I don't use the mat lines to cut so I have different brands of mats all over my sewing room. If the pattern calls for a certain ruler it is usually easier to cut the shape with it but not necessary if you know how to use a basic ruler. The last few years I have been using a Go die cut machine and rarely cut with a ruler anymore so be careful about buying a whole lot right at first.