Personally has never mattered to me one way or the other. If it's out in both then I'll watch the Dub so I don't always have to be paying attention to reading the dialog. But if I'm watching with someone who wants to watch the Sub, then I'm fine.
But with something like MHA when it's coming out at the same time like it was for the first half of Season 3 then I'll watch both.
But with something like MHA when it's coming out at the same time like it was for the first half of Season 3 then I'll watch both.