I think blogs are easy to start up and they have out-of-the-box SEO (many of them and if you have a good theme) which makes it easy for search engines to index them. I'd start blogs instead of websites.
Google hates Duplicate and spam content. Google also indexing webpage using quality of their content. I dont think there is any disadvantage/advantage for blog/website.
Yeah, but as someone already pointed out, you won't get tons of advertisers this way.. It's best to make some private link sales, and not to show google that they're links which have been paid for As for the OPs question, again, it has already been said, it's not the type of the website that's most important for google, but the frequency of updates.. Although I guess that because of ping services blogs actually do have some sort of advantage in terms of the former's link love