The Biz theme is a great theme for personal and business blogs. It's clean and modern. On the home page, you have a sidebar widget zone, Also a great slideshow.
The Daily theme has the most requested layout so far. It's clean and modern. On the home page, you have a sidebar widget zone, and inside the posts, you have a footer widget zone, which you are able to add any widget you want there. Also, you have a Profile widget on the home page and inside the post that you can customize easily.
Indigo theme is a Professional BlogEngine theme with great features, with a lot of search engine benefits for your blog. You can customize the header gradient.
Moment theme is another advanced BlogEngine theme with lots of features, which will give your blog a better look and some optimization to your content for the search engines.