To me, a regular brine is 2 T table salt per quart of water. (I use table salt here as a base, scale accordingly for the kosher salt (or other) you normally use.)
I don't buy the 'per pound' recommendations of brine charts one sees in CI and other places. They don't take into account flesh density, whether skinned or not, whether boned or not, etc. Though can often get you close enough, I think it is better to find an actual recipe for a brine concentration/time factor for the same item you plan on cooking and go from there. If it works for you, note what you did and use that as your new base of reference for an item of that type, size and trim level.
I do not often use sugar in straight brines. I find the claim that it 'reduces the harshness of the salt', frankly, silly--it's a brine not a cure--but if you like sugar in brines go ahead. I use them in those where I think some sweetness is beneficial, not because salt is somehow 'harsh'.
I don't, e.g., find much difference between a skin-on 3/4-pound bone-in chicken breast and, say, a 4-pound skinless chicken and would brine for roughly the same time. I do find a difference in, say, a 5-pound salmon side and a 5-pound pork loin and would brine the salmon for a much shorter time.
I go by what feels right to me (sorry, I don't have a chart--maybe we can collectively come up with one?). Were I doing a whole chicken I'd likely straight brine for ~6 hours. If flavor-brining I would want to go longer (it always seems to take longer to get flavor elements into foods, especially since so many are fat- rather than water-soluble) and would cut the salt just slightly and probably go 12 hours or better.
If rushed, as with Marc's current flow, I'd suggest a little more salt concentration than a regular brine and, possibly, an increase in the flavoring elements depending on what they are.
I wish I could be more helful than this.