This isn't a decision you should make lightly, nor is it a step you should take just because your new pastor isn't exactly like your old one. God gives different gifts to different people, and in time you may discover that your new pastor has some gifts your church especially needs right now.
The most important thing I can urge you to do, however, is to pray and seek God's will in this matter. God knows what is best for you and your family, and He knows where you will not only feel comfortable, but will also find the spiritual help and encouragement from God's Word that your family needs. The Bible says, "Let us consider how we may spur one another on toward love and good deeds. ... let us encourage one another" (Hebrews 10:24, 25).
Remember, too, that church isn't just a spectator sport (so to speak); a good church should provide opportunities to serve others in Christ's name. Does your present church do this, and have you asked God how He might want you to get involved? Instead of leaving this church, God may want you to stay and help it as it faces the future.
Pray for your new pastor; he needs your prayers. Pray also for those who lead your church, and if you have concerns, speak privately to them. And if it is God's will for you to go elsewhere, do so without grumbling or criticism. The Bible says, "Do everything without complaining or arguing" (Philippians 2:14).