First of all, I wouldn't advise to pick one folder for both EDC and SD. I prefer to keep one folder as sharp as possible for emergencies, and another one for utility use. Plus, as a knife collector, you get to have more fun that way!
Anyway, the folder you are looking for should have a fully serrated edge. These tend to stay sharp longer, so better for SD use. I would recommend any of the following, since I own, carry and use them:
- Dodo
- Li'l Temp
- Native, preferrably the new FRN Native III
- Delica, comes with a trainer! The handle is less secure than the first three
- Paramilitary, the handle is less secure than the first three
I don't own one, but I would also seriously consider the ATR for your purposes.
Good luck and let us know what you end up with,
Wouter