On gossip girl, who is the "head girl" or "alpha"...just started watching?

[Alex]

I just started watching and im confused, when i read magazines, i always got the impression that serena girl was the queen b, so why do they refer to blair as the queen bee. When i talk to people and actually watched the show i always thought that blair was the top person who was just often overshadowed looks wise by serena, but someone told me that blair was just the sidekick and serena was the real alpha. IM REALLY CONFUSED but i really like the show, can someone please clear up the social hierachry or whatever with this show please!!!!

[fhgjggyhdg]

its blair

[fhgjggyhdg]

its blair