What website would you recommend for a personal blog/portfolio?

[mark n]

Overall, third party sites like Blogger and Tumblr are not good choices for serious websites that are meant for business or commercial use. You're limited as to how far you can take a blog on these platforms.

Wordpress.org is your best choice -- you'll need a cheap web hosting account and a domain, though. However, it will let you create the site you're looking for, with a home page, blog section, portfolio section, etc. The sheer number of themes and plugins available for Wordpress will let you create any kind of site you can imagine. This is really the path to take if you want a serious business-style website to promote yourself with.