You really *can* write long posts on FB (they're called "notes") and many of my friends do. I actually do think that FB is positioned to be more flexible (it already is) and can be "more things to more people."

LJ is an ok aggregator but not as easy as FB when it comes to that.

As for tracking what's going on with your friends on FB via B, well, that's between the two of you - the possibility is there, anyway.

It's fine with me that you prefer LJ; there's plenty that's valuable about LJ. But there are different and useful elements to FB, whether you recognize or appreciate them or not. And that's okay, too.