Re: Game Design Challenge: Photo Challenge: Island
The entries aren't ranked -- they are essentially the "cream of the crop" of all the entries we received for that particular challenge. It's actually quite difficult to rank them in terms of quality, since often these game designs are so different it's like comparing apples to oranges.
That said, the ones that make it into the "Best Entries" list are the ones we deem the most impressive, the most creative, and the most viable to turn into an actual game.
I hope this answers your question!