Wedding bells are about to ring yet again on Grey's Anatomy, but the soon-to-be-married couple remains a mystery. TV Guide reports that there will be an engagement and a marriage in the season premiere between two of the show's lovebirds. Meredith and Derek are out of the running since they're staying true to their post-it wedding certificate, which leaves Owen/Cristina, Lexie/Alex, or Arizona/Callie. The third pairing seems the most obvious after the ladies' reconciliation at the end of last season, but the premiere is set two months in the future — so anything can happen! Which couple would you like to see tie the knot?