It seems that some people are worried that Bioshock 2 will not be as good as it's predecessor.  People say this is due to the lack of Ken Levine's involvement.  I find this proposition insulting, and let me tell you why.  I don't know who Ken Levine really is.  All I know is that he worked on BIoshock.  I don't know why people are freaking out because of this one guy.  IT TAKE MORE THAN ONE PERSON TO MAKE A GAME!  Attributing the success of a game to only one person is insulting to all the other people that worked on it in my opinion.  From what I have seen, BIoshock 2 looks fucking great.  So everyone who thinks Levine has the Midas Touch, stop complaining, you are being silly. 
 
UPDATE 
For all those people commenting saying Bioshock didn't need a sequel, I will tell you that I don't think that is a valid excuse to freak the fuck out.  I know I know, Bioshock had such an amazing ending that you don't want anything to screw up its perfection, but come on.  You could say tons of game did not need sequels like Call of Duty 4: Modern Warfare.  They wrapped up the story pretty good in that game, but the sequel went on to become one of the fastest selling games of all time.  It's not like they are REPLACING Bioshock with Bioshock 2, you can still play Bioshcok if you want and you don't even have to touch Bioshock 2.  You have nothing to complain about, think about it.