We would be narrowly favored over the Cards. But anything can happen in a short series.
We just played 7 games against the gnats and fillies each. Ended up 5-2 against the gnats and 3-4 against the syphilitic fillies. No one was punting those games. Just goes to show you anything can happen between reasonably competitive teams in a 5 or 7 game series.
It really does magnify some of the tough roster choices. Is having Hamilton on the roster a better move than having an extra pitcher or hitter. There is no way of knowing how the games are going to unfold. AA and company have to crunch the numbers and play the odds.