Once I made the experience, two blogs, one on wordpress, one on tumblr, as similar as they can be, same posts, etc. After few days the wordpress one was in firs

Once I made the experience, two blogs, one on wordpress, one on tumblr, as similar as they can be, same posts, etc. After few days the wordpress one was in first page of google, the tumblr one still very difficult to find. Anyway to cut costs I kept the tumblr one. Nowadays (2,5 years later) my blog is pagerank 4 (good rank for the traffic I have) and reasonable SEO. Even not being perfect like you say I would also recommend tumblr. (http://archimodels.info http://archimodels.info)