Formally, the eligibility criterion is similar to what it was in the poll's first iteration. That is:
If you are unsure of the eligibility of a certain individual, ask in this thread and someone will help you out. In general, edge cases will be resolved by erring towards eligibility (who are we to decide whether someone is "sufficiently Canadian?")Vote for your top 25 of active collegiate players (active being defined as having played in at least one tournament this year AND having never made a retirement announcement) who either attend a Canadian University OR are citizens/residents of Canada who attend school abroad.
Also, Open players are eligible.
This does mean, though, that people who have no connection to Canada outside of quizbowl (e.g., those who don't live, work, or study in Canada, but come here for tournaments) aren't eligible. But they are still eligible for Chris' narrower poll.
Standard format applies for ballots; 25 people, you can either reply here (ideally with some commentary beyond the list), or email them to firstname.lastname@example.org. Of course, considering advanced stats data, side events, housewrites, etc. is all fair game.
Let's say the voting closes by the end of May.