I love the june tailor shape cut plus for strips. I also like my 5x18 ruler. Creative grids is a good brand similar to the brand I use that has been discontinued. Those are the 2 rulers I use the most and then I have squares of several sizes for squaring up blocks. My fave rotary cutters are olfa. I have the 45mm splash and the 60mm quick change. Also have the 45mm gingher which I also love better than my ergonomic 45mm olfa. I still use june tailor mat but want to invest in a martelli because there mats are the nicest IMHO. Deb tucker makes nice specialty rulers but they are pricey. It really depends on what type of quilts you make. I also like the slidelock, got one for valentines, can't wait for it to come in, been wanting it for so long.