I don't believe an established fantasy writer has a better chance of winning this thing then a no-name DM.
The one pager is not about pure writing skills, it's about ideas. OK, you have to know how to read so you follow the instructions, and putting together a grammatically correct sentence has it's merits, but this is not your doctoral argument, it's all about the cool factor. You want to be able to grab the readers attention (cynical proffessional gamer's/editor's attention) and make them say "Wow!".
I hope 8-9 of the first pagers are no-namers. They can bring some fresh ideas into the RPG / d20 environment, and move it beyond Tolkien. Sure, he is the Grandfather of the Genre, but now I want some brash, loud, & creative thinking. I'm bored of elves, dwarves and hobbits/halflings... I want good writing for a change, and how about some decent editing...and some real media support for our hobby...
Sorry about that, stopped the rant before I really started to throw in my opinions
dren