@Bay: I think it might just be a matter of personal preference. First I come up with a story idea. Then I get the characters I want in that story. I then tend to think of how I want the characters to grow and develop (if they are able to grow and develop). Just a simple generic list that I can edit/change later with ease/when the plot bunnies start gnawing at my leg.
Thanks for your kind words and hope you stick with us for future episodes!!!