Blog and host

Maybe who knows what it costs a domain and a host, though I think a while to give up the field and in favor of free host.

Blogspot although simple,'s strengths, leave me cold because of weight comments. It would be three different free, all well and good:

wordpress.com , the largest provider, if you can call it that, of free blogging with his limitations, to understand otherwise.

So, I appeal to good will so readers: What do you recommend between these three? I do not want to hear it's not and who knows what money the host, who has so much money to give me to me!  :)