I've been trying a number of blogging services over the last year, Typepad, Blogger, Radio, and Bubbler. I had settled on Typepad. However recent performance issues are prompting me to perhaps reconsider. I like the mix of features, functionality, and reporting that I get from Typepad, but if I intend to be serious about my blogs, no having access or periods of down time are things that I would chose not to have.
I guess this means I'll have to more seriously investigate alternatives.