Since mine is photography, I think the same thing. But, the quality on FB isn't great. Still friends are more "chatty" and the FB thing means more feedback.
Also, yours is a blog I've looked at off/on - and I honestly forget! I love your watercolors, and since my mom is an artist I can appreciate your chosen media. My mom is also not good at people, which you capture terrifically. Things friends post on FB remind me not to forget to check out their stuff!
FB is also quicker and briefer, You write more on your blog, I assume.