The chooser right now is functional as a tool for the selection of licenses and generating the appropriate metadata, but does so with ui conventions that contradict its actual purpose. The first problem is that the user fills out a form, presses a button, and receives a license and metadata; this suggests that it is a registry or license generator of some kind - of which it is neither. The second problem is that while the deeds convey information about if a license is free culture approved or not; the user does not know to look for this information. The chooser can easily unintrusively provide this same information, enabling the user to make a more informed decision about their license choice. In the interest of objectivity, the UI changes should be informative and not "make NC scary".
It also may be useful to include some means of making CC0 accessible to individuals who would prefer that sort of thing. (I personally like a "don't care" option that ends up with CC0 instead of a license, but that would be the wrong way to go about it).
In execution, this should be a process that should allow the user to refine their input easily without backtracking. The current manifestation of the chooser uses a design that suggests that the user has to get it right on the first try.
The current results page isn't well organized. There is a lot of information that most users will ignore, such as the entire contents of the sidebar on the right. Everything does not need to be presented at once; the box containing the html fragment could also have tabs above it so the user may select which format they want (such as XMP). Visual elements on the current page could be easily consolidated without making the tool seem cluttered.
Currently, one goes to http://creativecommons.org/choose/ to open the chooser, and then hits "select a license" to be directed to http://creativecommons.org/choose/results-one to view the result. This second url will be kept as it is now, as people will some times link to that instead of the deed. The "select a license" equivalent in the new version will direct back to http://creativecommons.org/choose/ + the cgi string to produce the new results.
In both cases, CSS transitions may be used to fluidly change elements on the page and to make the new workflow very intuitive.
The above describes a different design philosophy, in which the chooser behaves more like an application which the user uses to explore the license options, than something bearing a confusing resemblance to a registration tool.