Beijing; an absolute must
For my first trip to China I began in Beijing for 5 nights and it just was not enough. The place is fantastic. The endless cultural treasures, fantastic food and general buzz around the city is one of the best I've experienced. Travelling there in December it was very cold but it added to the cities majestic charm. The normal 'musts' of the city will be done as standard; the Hutong's and street life shouldn't be overlooked for real fun.
Insider Tip:Dumplings and noodles represent ridiculous value for money for a great meal. Careful of the 'scams' outside of the main tourist spot; everyone has a story to spin you. Don't be put off by language barriers just go for it, locals are generally friendly helpful people. The Subway is the best way to see the city, easy to use and at 2 Yuan per journey anywhere in the city you cannot go wrong.