Marilyn, actually when it comes to Lois and Clark fanfiction, I think that we tend to view A and B plots slightly different.
While the plot-driven, and character-driven ideas apply in the general sense. Here I think more people see it as the A-plot is the 'action' part of the plot. The villian of the week, crises to be fixed or averted, that sort of thing. The B-plot is generally regarded as the development of the Lois and Clark relationship within the context of the story.
Myself, I tend to write C-plots, which are hopeless jumbles of the two combined in a way that no one can make sense out of. It keeps the gentle readers on their toes.
Tank (who wonders what the D and E-plots might be?)
