Christian. I have been challenged on this because I'm not a regular churchgoer, yet I really think one has to view things case by case and not exclude someone just because they are not a regular churchgoer.
I still fail to understand how church is a requirement for being 'Christian'. I stopped attending church a while back, and ever since then people have complained that I am not fulfilling my duties.
A lot of it depends on what kind of church we're looking at. Some churches can be more counterproductive than productive, and I had a bad long-term experience with one of those, whose effect was to push me away from God not toward him.
I would try harder to find a church that fits me today except for my extreme social anxiety, which prevent me from doing a number of other things as well.