I'm thinking of starting a blog, yet I'm not sure what service to choose. Is tehre another alternative? I've seen huge fully functional sites on Blogger (e.g woorkup.blogpsot.com which is now woorkup.com) and large Blogs on Wordpress. I'm willing to learn what ever it takes to develop a site like it.
By the way - Which is the official/proper term: Blogger or Blogspot?
Blogger is simple but Wordpress is functional. I have several blogs in blogger but I love my friend's wordpress blog for the appearance to functionality. He gets excellent traffic than mine despite me having quality content.
I don't think you can really compare them properly. Blogger is for the masses, no real technical knowledge required. Wordpress is reasonably easy to set up, but gets a bit trickier with admin tasks.
Blogger is easy because it's hosted for free, so all your uploaded images go to Picasa. Your videos are held somewhere as well, so you don't have to worry about them. I've got a couple of Blogger blogs and have set up a few WP 'sites'. I prefer Blogger.