Finally, the Major League Soccer regular season is over and the playoffs are upon us. Four matchups await, to ultimately determine the two clubs that will meet at Seattle’s Qwest Field in the 2009 MLS Cup game on Nov. 22. Will the defending champion Columbus Crew avoid being upset by Real Salt Lake, who snuck into the playoffs at the 11th hour? Who will prevail in the old Chicago v New England grudge match? Speaking of grudge matches, what about the Los Angeles derby? Are the upstart Seattle Sounders fit for the task of 2007 MLS Cup champions Houston Dynamo? Which playoff matchup are you looking forward to most? Vote in the poll below and defend your choice in the comment field.