One of my pet peeves in Windows Phone 7 was that the Lock Screen apps were set for you according to the order in which you configured them. Because I had run into that issue in Windows Phone 7, I had no reason to think it was any different in Windows Phone 8. Fortunately I was looking for something else and came across the Quick Status Configuration that lets you do just that!
Under Settings click Lock Screen.
In Lock Screen scroll down to Choose apps to show quick status
As you can see, you can click on any of these icons and choose what to put in. I like the default… Phone, Text, and my three most important mail accounts. However as I have more than just the three, I get to choose which ones are on the lock screen, and in which position.
Thanks for listening Windows Phone guys!