The Primetime Emmys air this Sunday, giving voters the chance to honor outstanding TV writing and performances and television fans the opportunity to complain about which of their favorite shows got snubbed. This year's nominees include old favorites like 30 Rock and House, as well as new hits like The Good Wife and Glee. Will Jack Donaghy beat Michael Scott? Can Jon Stewart compete with Betty White? And what about the three-way competition among the actors of Modern Family?

Today, a look at the 10 most competitive races at this year's awards. Tomorrow, we'll show you the most predictable ones.