What is the best way to approach limitations for AI Games Showcase?

A useful way to look at What is the best way to approach limitations for AI Games Showcase? is to focus first on approach and limitations. That tends to make the trade-offs easier to compare. The original point — "There are several ways to approach AI Games Showcase, so I wanted to compare experiences. I am particularly interested in limitations and advanced workflows. I would like to compa…" — gives a useful starting point for that comparison.