Tumblr or Blogger?

I'm checking out the competition. I've had a Tumblr blog for some time (you can find it here), but I can't decide if I should stay there or not. I feel Tumblr is somewhat limited. Is blogger just as limited? Is it better? Or worse? We'll see. One thing is certain, and that is that Google development is not lazy. One thing that might give Blogger the upper hand.