It really depends on what you are looking for in your anime-watching experience. If you are interested in the original Japanese version of the anime, then you should watch it in its subbed form. This way, you can hear the dialogue as it was intended to be heard and get a true sense of the characters and story. However, if you are more interested in following the plotline and understanding what is happening without having to read subtitles, then dubbed anime might be a better choice for you.