I've been subbed ever since I started watching anime online. Which is for like 4 years now.

And Andro put up a bad example of japanese dubbing with DBZ. Yes, that particular show has bad dubbing, but that doesn't mean all shows do.

The only english dubbing that I will approve of is Fruits Basket, Cowboy Bebop, the DB series, and Outlaw Star. Maybe Gundam Wing too.