An interesting idea I just got. This is how it works I post a box art and the person below posts another box art, the one below that choses which is better, and also he has to post a box art of his own for the next person to go up against. Obviously the two people that post the box art can't decide the winner.
Example:
Bob post:
Jim post:
alphonse post: Halo 3 winner
(and so Alphonse post a box art to be compared, and so on)
So I'll get the ball rolling
...of course