Sound 5. Teamwork is dream work. The East Blue villains wouldn't get along. Kuro would end up slashing Arlong in one of his little fits and that will be that for Kuro. Don Krieg's poison isn't likely to do anything to anyone except his own team. Also a healthy Kimmimaro could fight off a Kage class Naruto clone which is more impressive than anything the East Blue villains have done.