I love advertising, marketing, and creativity. My favorite medium (from a pure creative standpoint) is print. Within a printed medium, you're limited to a two-dimensional canvas and your only means to engage people is visually—through words and imagery.
That said, technologies like AR, VR, and NFC blur the boundaries of what's possible with regard to print and traditional media.
I also enjoy creating highly targeted integrated marketing campaigns that combine print, direct mail, outdoor, broadcast, experiential, guerrilla, and non-traditional digital channels.