The main thing when you face "dominant" pitchers, is to PUT THE BALL IN PLAY. Be agressive at the plate, most "power" pitchers work around the plate, not off of it. Make their defense work, whether it is small ball or not. Make their defense field GROUND balls. What I have seen a lot of over the years, the teams with the dominant pitcher seem to have average defenses. Fielders seem to become complacent since their pitchers are striking everyone out.
Put the ball in play, pressure the defense. Errors have a way of getting into the pitchers head. Once on base, make sure your runners are agressive. Make the outfielders throw in front of your base runner, may cause an errant throw.
Make sure your girls KNOW they can win, regardless of who is pitching.
Now...........wasn't that better than Mr. NoitAll's post?