Is this a trick question?
Even though I am very biased to the peanut, the real answer is, it all depends.
Where you live, how you live, and what you do all have contributing factors in what pocket knife will be a good choice. I've carried stockmen, barlow.s, sodbusters, and even large SAK's, and at the time I carried them, I lied them. But more important is, they were good for what I was doing at that time. Life changes and we change as well over the years.
LIfe in a suburban or urban setting is different that rural country life. A rural Northern California life style is apt to be different than a southern California urban life style.
But, I find a two blade pocket knife more useful than a single blade pocket knife. I like having a second more obtuse ground blade on hand for rough work, that I know is going to mess up a blade. Also, I like a definite point on a blade. I found the sodbuster a little blunt for edc work, but then I'm a suburbanite, and am in urban settings more than country, even here in my new life in the Texas Hill Country.
Having really tried all the patterns, I go with a two blade jack of some some type. If a peanut is too small, try a small to medium jack or barlow. You'll have a more versatile tool.