Sean,
Just a thought about Strat-O vs APBA, the nice thing about Strat-O is that the actual outcomes are on the card. So you see the volume of HRs and hits and walks and strikeouts right on the card. I think that APBA uses charts with everything. Strat-O does use charts, but mostly you read directly from the card.
Here is the APBA Wagner card
Here are a couple of Strat-O cards
I always liked to see the actual output on the cards. I did mathematical comparisons of the greatest players of all time. It was fun and easy to compare the data from the respective probabilities.
Cy