Ork Design, based out of Chicago, makes neighborhood maps. They're rather beautiful and organized in such a way where neighborhoods are (somewhat) in their correct position, with interesting typology mashed in.
As we read in Mark Treib's "Mapping Experience," maps are about the experience and intentions of the designer and the user. When Ork's Los Angeles map was released, LAist.com interviewed one of the designers about how the maps are made. With the Los Angeles map in particular, certain aesthetic judgement calls were made to make neighborhoods fit harmoniously. This ultimately led to the omission of certain neighborhoods, and other generalizations were made. Regardless, all of Ork's maps are beautifully done.
And according to their website, a Philadelphia map is coming soon!