Dear Ms Rejector
Do you have any insights on book titles, and if they affect the way you respond to a query?
The answer to your second question is no, they do not affect the way we respond to a query. We'll probably only notice the title if it's especially cool. Most of times it's just a regular title or an especially bad one, but that doesn't bother us. The title can be changed throughout most of the book-publication process. I'm not particularly sure if the right title has to go on the contract or if it can be changed later, but I think it can be changed as late as final editorial.
Titles are also deceptively hard to come up with unless you're writing a thriller. We don't expect you to nail it the first time.