I just revived my Japanese blog, which has more than 10K subscribers on livedoor/Google but has been abandoned for more than 2 years. It's now up on Tumblr.
I've always been a fan of TypePad, which I am proud of having worked on at Six Apart/SAY, but for this particular blog, it just strikes me that Tumblr is easier to customize and do some wacky things like inserting Ads. (I also considered github's Jeckyl as well, since it does the ultimate flexibility in doing crazy things :-))
Anyway, Japanese posts will go there, but I keep blogging in English here, so no worries.