WordPress 3, which should be released pretty soon, is doing away with Kubrick as the default theme. In it’s place they’ll use Twenty Ten, a theme by designer Matt Thomas.
If you haven’t seen this yet you should check it out. It has nice typography, it’s easy to read. From what I’ve seen it’s a beautiful theme to design on top of, although I’ll probably use it right out of the box for a while when I upgrade to WordPress 3.