I don't like the thick blade blue handle ones found at most stores. They aren't sharp enough to cut the thread, they break the thread. I like Clover for general all around good rippers. I use the surgical blades ones the most, they are great but hard to keep up with if they don't have a handle. Fons and Porter's is good too. I like the big handle on it, easy to find when I lay it down. As long as the ripper is thin and very sharp I like it. If I can't find anything to use my 40% coupon for at Hobby Lobby or Joann's I buy a seam ripper. I have many unopened ones put away when I need quick gifts for quilting friends.