In most cases the CMS option will prevail as budget and access to a team of developers may be limited and not warranted. Keep in mind, depending on skills available to you, a web-developer and graphic-artist may be beneficial to engage and should short-cut the process and help you with these decisions.
Do I employ a local web developer and graphic artist(affiliate Muzz link) or do I look online and employ a developer from another country(affiliate Ducker&Co ????)? Do I work it out with friends?
All of these will work. It is really determined by blog requirements and budget. Either way, you will need to have an idea of how you want your blog to look, feel and function.