By: Gary Mills on January 6, 2012 - 3:09pm - Add new commentChoosing the best Meryl Streep performance is like trying to decide which type of ice cream is best — it’s pretty much always going to be great, and while there may be a couple flavors you don’t like as much, you’re never going to say no to ice cream. As Streep's new movie "The Iron Lady" hits theaters, Associated Press film critic Christy Lemire shares five of her favorites performances by the iconic actress. ...