I'll put another vote for Wordpress. The reason is you will probably be moving to a Wordpress blog eventually anyway. If you put all that work in up front to build your blog, traffic and content, having to switch a year or two down the road hurts ALOT - ask me, I know. When I moved my blog from Typepad to Wordpress links broke, I temporarily lost visitors, everything was chaos.
Be careful in what framework you do choose. Try to make sure it will last through the long haul.
Thankfully, things have more than recovered since the move and I'm enjoying the Wordpress way of going about things.