Hi guys, it's my first post here. I'm seeking some advice about my website project.

I want a website were each user can have a little personal space like a blog to share his/her progress with the community. I'd like to do this either with :
-Joomla CMS + the community builder component + the MyBlog component
or:
-SBI + vBulletin Blog
I'd like to use SBI for the promotion because I have almost no clue about how to promote a website. Is it possible to use vBulletin with SBI?
On the other hand, I'd like to use joomla! because that's what I know best technically speaking.

So in your opinion, which one of the two is the best option?

Thanks for your help