I'm honestly not trying to be dismissive, but why?
I would think that meteor is a terrible choice for a blogging engine. Perhaps for the admin tools it would be great, but a blog's main purpose is to disseminate static content. A technology that generate standard HTML is much more suited to the task rather than dynamically constructing the content with Javascript and data.
Also, can google crawl a site made with Meteor? Would this blogging engine be terrible from an SEO point of view?
Meteor looks pretty cool and the possibilities of creating amazingly dynamic web apps is exciting, but a blog is not very dynamic so it doesn't make much sense to me.
Right tool for the right job and all that.
