All the areas mentioned are more dangerous than the average, although you feel safe, and you are most of the times.

I'd prefer others, and be careful not to go back home in the wee hours alone if you stay at these)(friends should escort you to the hostal/hotel door, not just the building door cause many assaults are on the entrance hall, out of sight of people passing by).

However, it's true that I have not heard of any death or mugging in the last year or so.