So it seems that the light side always wins this battle, which means all light people get 10 and dark people get none. Sometimes the difference between getting your ToH gears or not is 10 points! I think that new people are discouraged from joining the dark side because it's easier to get ToH gears with the light allegiance.
So I suggest one of two options:
a) Give 5 points to everyone who joins the mass PVP. The winning side gets an extra 5 points.
b) Give the winning side 5 points only.
I'm leaning toward option a.