Although Dante believed "incontinence" was the worst of the 3 types of sins (he thought it was the hardest to overcome), it is represented in the "upper hell" (these self-indulgent actions are not done intentionally). Some of the 7 deadly sins are expressed in this upper hell because they are uncontrollable. I thought it was interesting that only 5 of these 7 sins were represented with their own circle of Hell in Inferno since these cardinal sins are considered in the Bible to be the worst possible things to do. Now, I know The Divine Comedy was not based solely on the Bible, but I figured if Dante was going to give some of the sins their own circle he might as well have given a circle to them all. I feel that these sins should be given some more attention, taking into account how important they would have been in Dante's time and even now.
Dante directly mentions:
1. Lust (circle 2)
2. Gluttony (circle 3)
3. Avarice/Greed (circle 4)
4. Sloth (circle 5--I will include this as a direct reference because the slothful are mentioned as being underneath the wrathful)
5. Wrath (circle 5)
Envy and Pride are not explicitly accounted for! Many people would argue that pride is the most treacherous of all the 7 sins so it amazes me why this sin, especially, was not given its own circle. I wish I could ask Dante why exactly he did this--whether it was intentional or it was an unconscious act in that he was just trying to focus his attention on the bigger picture. The order of the sins in the "terraces" can be argued, too. Some individuals might find that lust is worse than gluttony, for example, and should thus come after gluttony and so on and so forth. All in all, each sin really feeds into the other.
Which of the 7 sins do y'all think is the most "dangerous?"