I like the olfa quick change and the splash one. I also have the ergonomic retractable one, but I don't feel it cuts as well as the other 2 because you have to hold it open, but it is safer to lay down and not get cut. I just got into the habit early on of closing my rotary cutter before setting it down, even the ergonomic one for this reason. I also love gingher45mm which I got on ebay for a good deal. The splash I got at connecting threads online when they were having a sale, craftsy also has a good price for this one when on sale. MY 60mm olfa quick change I also got on ebay for good price. Check ebay, sometimes its still cheaper than using a coupon at joanns