I'll be brief. Who won? David. Who lost? Legault.
Projection based on my interpretation of the results of the debate:
Charest: As I suspected, nothing he did or would do mattered.
Marois: She really did well, she looked most like a Premier IMO, and has solidified her party's lead.
Legault: Too aggressive, everyone wanted to tear a strip off him, he looked unready.
David: Extremely strong performance. QS may be back on track for more than 2 seats.