Reply To: End User Blog
You already have a blog if you run WordPress.
Depending of how many authors you expect, and money you have, you can opt for MS and allow a complete blog (like the main blog) to each user. But a blogging farm is a BIG project who need space and powerfull server ressource. BuddyPress is tailored for that. But are you tailored to assume ? 😉
A good compromise for small and middle project is BuddyPress Groupblog wich comes with P2, an extra front-end editor theme. So you have two answer in one plugin.
BuddyPress handles essentially members. Publishing is WP’s job and giving users a possibility of front-end publishing instead of back-end is an endless pros and contras discussion. And in any case, a long front-end dev work. At least.