My favorite crisis is easily the Monster Island crisis. The biggest problem with the first two (Canada and the desert) is that they are more or less a few missions. Lemuria is decent to, but it can sometimes drag on due to the flow. Vibora bay is by far my most hated crisis. Besides being forced to do it to enter vibora bay, all of it's missions are only doable one at a time, and it tends to drag on. As much as I like story, it wasn't honestly my favorite for some reason either, even though most people tend to like it's story the most. It's just to long for me.