OP updated again, now each platform has the same number of games (6) so that, one game won't skew platform totals more than the other consoles. I'm going to add new games daily, when I get to 10 on each platform, I will rotate between adding new games and updating the numbers with the updated sales figures.
With today's update Mario and Luigi has been added to the chart, and is the first DS game to see a decrease in sales from the GBA. This will probably change after M & L 3 is released worldwide, but for now it is # 4 on the biggest losers list, knocking Metroid Prime off.