Even though I watch most animes in japanese I grew up with english voices with naruto, so I like the english more :)
I mean there are famous voice actors there like yuri lowenthal he's like the one you shouldn't miss, then to my surprise I knew it that the voice actress from karen uzumaki is ali hillis (the voice of lighting in ff 13)
Original voices in everything except CGI American cartoon movies...which, for some reason, actually have amazing dub in Spanish that is, most of the time, better than the English voices (This still baffles me as in other dubs in anime and movies you can notice that the original is superior). Everything else I see in it`s original language with English subtitles (sometimes even if what I`m seeing is already in English, as there are some actors that I can`t understand a thing they say).
You are trying to understand madness with logic. This is not unlike searching for darkness with a torch.