I had a really hard time writing the query for my first book. In fact, I'm still tweaking it, so I decided to try something different. While I'm writing the book or even before I write the book, I write the query.
Crazy you say.
I actually find this really helps. It allows me to identify any problems, whether that be conflict, plot, character, or voice. Plus by the time I've finished the book, I won't have to spend a lot of time writing the query.
What do you think? Do you ever write the query first?
PS: In the What's Happening on the sidebar, Laural Garver's book is being released tomorrow. Stop by her blog and congratulate her.