You can review his work and read the themes on his blog, Bearded Bunny. For those of you who know a thing or two about comics, consider which ideas will, in your opinion, stand the best chance of gaining an audience, and cast your vote.
I chose "Orvil's Basement," because the claustrophobia seems full of dramatic potential and reminds me of a scary episode from my own childhood. From a commercial view, it sums up very clearly, making it easy to capture the imagination of potential readers. With horror themes dominated by vampires, werewolves and zombies, this one sounds fresh.