It only shows the clicks it got that day, or at least within the last couple days. So, a creature may get a ton of clicks on day, but if you check it several days later the clicks won't be registered.
As for order, I'm pretty sure they're in the order that it get's click. So if person 1, person b and person c all click a creature their names would appear in the order that they clicked.
Also, I dunno if that kind of raffle would even be allowed, it would be to easy to cheat(twitter, yarolds) and plus the clicks would get cleared after several days so even if they donated one with 50 clicks, they wouldn't be there in a couple days.