If you want an easy-to-use WordPress theme that offers high functionality regardless of what niche you choose, Starter (demo here) is a great choice. It can be used for personal blogs, but is also well-equipped to feature your content should you need a good template for a professional or business blog.
Because Starter’s layout is arranged on one page, your visitors will be able to see everything you need to feature. The page is also divided into neat blocks so you can categorize your content — text, photos, links, videos, audio — in an organized manner, while at the same time packing it with as much information as you need to. It also maximizes visual impact with its bold colorized sections and a large scrolling image header. It’s highly customizable, SEO-friendly, cleanly designed, has powerful admin functions, and is fully responsive.