Sherlock, I don't think this'll ultimately prove anything. Whether or not someone likes kissing another person tends to depend a lot on how they feel about the other person. Like or love them? You'll probably enjoy it enough to overlook any awkwardness. Hate them? You'll sure as hell hate crushing your lips up against them. And if you just feel indifferent, it might be a little fun physically but that's really it.

So if you do get people to go along with this mad experiment, unless you already like them, you're probably either going to dislike or have no opinion about the kisses.