OnSugar, Tumblr or Blogger. Any suggestions?

I'm trying to decide between OnSugar, Tumblr and good ol' Blogger. Any suggestions? Preferably from personal experience.

I want a blog platform with very good SEO and revenue generating options. I intend to get my own domain name and I'm also toying with the option of self-hosting Wordpress.org but seriously confused about the choice of a reliable host.
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