The stupid thing is, there's no sound mathematical way to rig a vote of this type.
As it stands right now, legomymalfoy is ahead, but probably wouldn't win on the run-off. Unfortunately, if Jameth's supporters have been stupid enough to follow the advice about voting for him as 1st, 2nd and 3rd choice, you can't look at the 2nd and 3rd choice results to gauge who will win.