My opinion: It depends on 1. How many cups are to be brewed each day. 2. How serious you are about coffee. 3. What is your budget?
I would say as an example you will brew three cups each morning before taking off to work. A "pod" or "filter system" would be fine depending on your budget. If you are looking at many cups (5 or more) per day a "pod" system would be less expensive in the long run.