I liked the American trailer better. If nothing else, you can hear the dialogue that sets up the story and is supposed to make you interested in the game better, because there's not some awful rock singer wailing over it. Though I did like the added gameplay footage. The US trailer I don't think had ANY gameplay, just cutscenes.
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Something witty while mentioning SuperNiceDog.
Give me a break, I'm not as clever as the Guru Champion.