Nominate your stories in whichever category you think fits best, Nancy. Most will be obvious - and you should be guided by the k count where the category has one.
But if there's anything you think is a bit ambiguous just go ahead and nominate it wherever you think best. K-Comm will sort it out if you get it wrong.
So, basically, don't worry about it too much. The important thing is to get those noms in. Wherever you put them.
LabRat