i also think .com and .net are the best., although i do have some .info domains, but really cannot get rid of those.
definately take a dot com for a blog, you need to brand it. Only take .info's if you're planning to build a proxy network
I would stay away from it. .info is less valuable and less web users remember .info and use them. Probably why it is priced cheaper.
as a rule if dashed - com taken get a good .net NOT .org. .org looks ridiculous for most sites. Unless your a non-profit charity or political group or directory.