Blogger vs Edublogs

Daunted by the looming task of setting up my fourth graders' blogs, I started considering Edublogs instead of Blogger, based on the great community that Edublogs seems to have, the ability I would have to monitor kids' posts before they go up, and posts like this.
After several hours trying it out, however, I found that my setup will be easier with Blogger. (Plus, we've already laid the difficult groundwork of email and Google accounts.)

Edublogs seems best if you want each student to have their own blog, or all of your students to contribute to one blog, but not so much when you're planning about 20 team blogs with 5-7 students each. Same problem with eChalk, which hosts our school website and has recently added blog capability, but only for individuals, and with the additional problem of having their usernames, which includes their last names, in the address.

Why team blogs?
1) No one wants to go through 130 fourth graders' blogs. It may give them more control and ownership to have their own individual blogs, but they'll have a much smaller audience. This brings it down to about 20 blogs, and they're arranged by topic, which is more authentic.
2) Having team blogs about a specific (but broad) topic gives students something to write about, which should help eliminate the writer's block problem, as well as the pointless posts problem.
3) Teams provide a structure for students to help and support each other.