I don't want to skew your results by answering undecided when it's more complicated than that. I'd like to keep my current name (which I changed to at marriage).
It would definitely eliminate any chance of stealth, though, and I might be willing to change it if my ex requested I do so, but if I did, I'd most probably revert to my very common surname from birth, unless parents objected. Since my current surname is also the legal surname of my children, I'm very hesitant to consider changing it.
If I were to decide to change it, I'd probably go with the maiden name of an ancestor on my dad's side whose identity I discovered in the course of genealogical research. The screen name I use here is also a tribute to her, as is my most common and simplest online screen-name, ebbixx. e.b. being her initials, bi and xx being what I assumed to be self evident references that surprisingly few people deduce on their own, or those who do don't feel comfortable mentioning.