This is how to detect cheaters.
1). All votes should appear evenly distributed in a Gaussian manner.2). Shouldn't have extraordinary number of votes. (i.e. if average votes for all pictures should 16, it should be 16)
It is sad I have to go to #8 to find the true #1 image. As you can imagine, in an internet voting system like this, voting fixing is simple and easy. This is the first image where votes appeared in a meaningful Gaussian pattern.
<a href="http://www.flickriver.com/photos/jimxshen/popular-interesting/" rel="nofollow"><img src="http://www.flickriver.com/badge/user/all/interesting/noshuffle/medium-horiz/ffffff/333333/64830328@N07.jpg" alt="Dr. JS - View my most interesting photos on Flickriver" title="Dr. JS - View my most interesting photos on Flickriver" /></a>