Yes, but that is an exception. 'Westernized' anime is nearly rewritten in some cases to suit the censors and parents. Shows that you will never see in the 9am Saturday morning line-up tend to be more well done. Ghost in the Shell, The Melancholy of Haruhi Suzumiya, Evangelion, etc... not dubbed for Saturday morning, thus gets done better.
Also... if you want a anime that hasn't been officially subbed, you get fan subs, and the translations can be quite atrocious sometimes.
btw I prefer dubs. I dont watch Japanese cartoon like pokemon or dragonball Z... I watch anime. Anime is often very complicated in storyline, and you need to watch what is going on, not just read the bottom. If I want to read, I will get the manga.