I use most any brand. I am finding that I need a bigger handle to grip so that's mostly what I look for. I would hate to count all my rippers as I have them everywhere. They do get dull after a while I sure don't want to be without one. Guess that tells how often I have to unsew. :lol:

Nice to know, I just bought that one recently.

8-)

The sharper the better. That is why I use scalpels. My doctor gives them to me. (I prefer the #11) I read an article in one of the quilting magazines where they compared all of the types out there and the one that they liked the best looks just like a scalpel.... hmmmm. When you use those curved ones with the ball they tend to stretch your fabric, get caught if they are not sharp enough and force you to "force" it. Which of course causes you to cut the fabric rather than the thread.
Before you say "no way" - try it for your self.

Anyone I have ever tried have worked fine.

In my book, you can't beat the seam ripper from Viking; sells for around $7 and rarely needs replacing.

These work just fine for me if I have not pressed the seam yet, and the threads are sitting on top of the fabric. It was scary the first time I tried it! Cutting every 6-8th stitch is sufficient to pull out the seam, usually. :D

you can use your rotary cutter to rip your seams...

I love the Bernina seam ripper. I can rip faster and that is important to me because I love "ripin" and I seem to do a lot of it. The difference in it and other rippers seems to be it just glides under the stitch like butter. I never have issues getting under the stitch even if it is quite small.

I have never seen a seam ripper that could be sharpened.
I always buy the cheapest they sell ... <wave>

I agree 100%. Their's are wonderful! Our puppy chewed the heck out of the corner of mine but I won't throw it away. I have a new one from my new machine and I guard it with my life. I'd be lost without one. I have others but none are as good. And you're right--the one complaint is that the handle could be bigger!