Why so many differents enter pages, blog, wordpress ??

Hi good morning to all,

Just want to know please why there is so many diefferents enter those

1- blogger
2- personnal pages in free hosting
3- wordpress

I try the same to all new page, or new message and ping with rss submit, the winner is wordpress, blogger and mimes pages ????

So do i need again to waste my time making pages so slow, hard work, and need long time to be seen

Or only wordpress and blogger in "an army blogs" ( i know risky can "clean" all but if give results ???

thanks a lot
enjoy