I am a proponent of specialization. I've found it is easier to convince clients to use your services if you have a track record of developing similar projects a

I am a proponent of specialization. I've found it is easier to convince clients to use your services if you have a track record of developing similar projects and appear to have expert knowledge in that area. Of course, it's also great that have breadth of knowledge so you can always say Yes to client when they ask if you can do X. I would think about which areas that you mentioned above you are most passionate about and what skill-types your current network has and base your decision off of that.