What would "Modern Family" be without Alex Dunphy? She may be a self-proclaimed nerd and a total overachiever, but that's kinda what makes her so awesome. Alex, played by the hilarious Ariel Winter, brings much needed intelligence, reason, and wit to the Dunphy household and beyond. Plus, she's sassy and snarky when she needs to be and her Haley burns are always on point. Here are 15 times she was the Dunphy we all loved the most.