Buses are cleaner and more incident free in my experience, but they can be infrequent, depending on the route. They also have to deal with traffic. In the septa app you can use the transitview option to see where buses are on the route live.

I take the broad street line and El because they are much faster to get around and fairly frequent. Just be aware of your surroundings for people who might cause trouble. Yeah youll find some addicts on the train but they keep to themselves in my experience.

Your experience will depend where in the city you move to, center city gets more frequent service than far flung neighborhoods.