I think Accelerade uses mostly maltodextrin and dextrose, which is easily converted to glycogen by the body. Clif uses brown rice syrup and similar sugars, which is about 50% soluble carb: glucose (quick to digest) and maltose (an hour or so). You pretty much just have to read the ingredients list. I tend to go more by taste, but I think you'd do fine with those brands or Hammer, Gu, etc.