I choose the Chase Design Group webpage not only because Margo Chase is one of the designers that I look up to, but because I absolutely love their page. The first page you see is simply gorgeous, showing snippets of their work that gets rotated every once in a while to get a feel of what they do. It also include a section of their actual work, with the brands that they have worked with, along with specific sections such as packaging, branding, logos, etc.
They also include an About tab, which I think is fabulous. It includes the philosophy about the agency, the design process that they follow, the clients that they have and one of my favorite parts of the website, their People sub tab in which you can click the above image to choose a person and read more about them and the role they have on the agency.