I personally believe that the whole thing is ridiculous. Who cares about which one can get more fans? For Christ's sake, it's a FACEBOOK Fan Page. And it's guaranteed that people made multiple accounts just for this craze.
Yeah i know thus guys, sick bunch of people. Theres a interesting Documentary about them called: "The Most Hated Family In America" (Guess why ) But seriously i think this is all very scary, Humanity is truly doomed
Then again, being a "fan" from a Facebook perspective doesn't completely indicate (to a certain extent) a "supporter" status. As a popstar, you have to understand that she has infinite reach - she performs all around the world, so she has fans all around the world. Obama might be doing a great job in the eyes of his supporters, but the worldwide appeal that Gaga has is not something he shares.