She went with the four seam, because I know I can hit a ball trailing away much easier than a drop ball.
Redhot - I don't know if I agree with you on this one. If a pitcher is primarily throwing a four seem, it might be very effective to throw a two seam in there occasionally to keep the batter off balance as SocalDad has suggested. I guess it depends on how much the four seam drops and how much tail the two seam breaks outside?