User blog comment:Gary the Gaget Dude/The Aftermath: IV (Who Wants To Pick A Millionare?) Follow-Up/@comment-2091662-20110421163437

Didn't you see that there was only seven votes, Bridgette/Geoff didn't vote, they were making out. Owen stinked up the vote room so then Trent and Leshawna didn't vote. Lindsay lost her paper. Actually, the only people who could have vote were:
 * 1) Izzy - for herself
 * 2) Gwen - unknown
 * 3) Courtney - Duncan
 * 4) Harold - unknown - probably for Beth
 * 5) Heather - Duncan (she said so)
 * 6) Justin - Beth
 * 7) DJ - Beth
 * 8) Owen - Duncan

So in the end, it's 3 to 2 for Duncan. So in the end, it's probably Gwen who has voted for Duncan in the end. And in the alternate ending, she probably share her vote along with Harold, Justin, and DJ, and voted for Beth.