Chocolate - and sugar in general - has a powerful effect on my mood. It can give me quite a high. But then I crash afterwards. So it's not really comfort food for me. It's more like a quick "pick-me-up", but I have to pay a price afterwards!
I find carbohydrates, especially grains, comforting. Tonight we had Soba Noodles and veggies done in a wok with a Thai peanut sauce. I found it not only delicious but also very satisfying and I feel satiated and calm now.
I also really enjoy oven roasted veggies. They are definitely comfort food for me. And bread! I love bread!!
It also strikes me that comfort food for me is generally food that I don't need to chew very much. I enjoy soft textures. Maybe it takes me back to my childhood or something!!