Tumblr isn't generally very good if you're going to have a solid story with your blog. It's workable, but a story really has to fit that blog medium.
Blogger is a pretty solid one, and probably the most common. Its archive is also easiest to navigate. Wordpress is another good one, though. I recommend Blogger or Wordpress.
There's also maybe Livejournal or something but nobody uses Livejournal because I think it sucks or something.
Also if you're going to write a blog, stop using words like "plz." Nothing will cause your audience to lose interest faster than illiteracy.