I don't think the double war is the biggest problem, even if there is no surprise civ always attacks you with an allie. The most disturbing to me is civ which has no chance to do something to me will declare war. When a neightbour with even not 1/10 of my army strength declare war to me, whatever he likes me or not, it is juste nonsence. Sometimes i just wait for a "Merry christmas, i declare war to you so you can take my cities !"


