I always watch subbed.

On one hand because I just like the Japanese language.

But also because there are no dubs in my native language, and whether English or Japanese... it's all just foreign languages anyway. So I don't see a banefit to watching dubbed. Sure I'd understand what's said, but it's really not that hard to read subtitles. In fact, information tends to stick better for me when I read it rather than hear about it, so I only see benefits for myself with subtitles.