15 people sounds like a really big group - that will only work well if all decisions are made by simple majority.
I think the group should be a select few, and best by jitspoe's choice. I know that many won't agree with my words, but honestly, he might still be the one who is leastly biased, and I'm sure he wouldn't pick his own favourites because he is the one who has now started this discussion and wants a group that shows him another side - the side of the community.