I'm rather surprised that DOA4 gets an M rating where SC4 gets a T. What makes SC so tame compared to DOA?
Though I'm sure someone may have already answered this..
1. Nudity (As proven on Kasumi's ending)
2. Strong Sexual Content (In pretty much everything)
3. Blood and Gore (Watch Hayate's ending)
I'm sure DOA5 will go downwards to T with the direction they are taking with it.
There are things that Soul Calibur does need to work on, but of all things that would make it a better improvement to the series, blood, gore, strong sexual content, and even more nudity won't make it better. I was just glad that PS toned it all down in the clad department.
If anything, I do agree with DevilsDisguise that the atmosphere could be more darker, or more mature in a sense of nobility. That includes more "realness" amongst the new characters. Right now, they are all just underdeveloped characters with anime qualities. While naivety can be included, I would like to see this naivety turn into a tragic moment amongst those characters, and when I mean "those characters", I am currently talking about the Asian group.