What is the Best Case for Old Age Creationism?

Throughout the "What's with the Age of the Earth" series, we've mostly discussed why I take the young age creationist position. But a philosophically astute listener (and friend of mine!) asked me how I would argue for old age creationism, and I thought I would take him up on the chance to publicly answer that. So, if I were going to make a case for old age creationism, here's how I'd do it.
Throughout the "What's with the Age of the Earth" series, we've mostly discussed why I take the young age creationist position. But a philosophically astute listener (and friend of mine!) asked me how I would argue for old age creationism, and I thought I would take him up on the chance to publicly answer that. So, if I were going to make a case for old age creationism, here's how I'd do it.