As far as the sub vs. dub debate, I'm surprised no one mentioned Black Lagoon

compare: (same episode, and about the closest I could find)

eng dub

jp sub

for me personally, I have no problem watching subbed, though I still lean towards dubbed as personal preference. That being said, I do find different takes on a character interesting. Case in point:

some are good, some are bad, and one is high octane nightmare fuel