blog of course. very fast to get indexed by google. you dont have any liabilities. anything you earn is profit. your own site, you need to take care of other costs, realibility, etc
Does not depend but the blog is good because people tend to make new contents regularly which ranks well.
I would say a blog. However, if you plan to have a huge site, somewhere in the approx. region of 40,000 to 10,000 Alexa rank, you could make a LOT of money. With a blog, even though it's still new, it can make money.
i really love blogs.did you know that search engines love blog more than sites?a content rich blogsite will rank higher than a website in the same area on the search engines.i use blogger
Most people recommend blog because it much easier to setup and all the addons make your life much easier. But if you are a programmer you can easily setup a site as easily as you'd setup a blog. Anyway, It really depends of which kind of website you are trying to start.
For me, I would go for blogs because I can focus more of my time providing quality contents rather than worry about other aspect such as design. SE nowadays also give more preferences to blogs as well.