Civ5 leader animations are quite good, but they all have a lack, IMO: each leader will always talk with the same emotion. Talk with Bismark: he always has his rigid and firm accent, both in peaceful and in war times. Talk with Harun Al Rashid: he seems not to care about anything, be it a trade agreement, a denouncement, or a war declaration. Talk with Montezuma: ok, he seems infervorate, but he never demonstrates any different or friendly mood. None of them seems to talk differently even when defeated. In conclusion: I like this way, but I'd like to see in Civ 6, for each leader, both their friendly and their aggressive face.