Wonderful way to ask the question, Steve. I hope others jump in.
There's the land, of course, but through that does the designer's spirit still shine through? Yes, I think so. There's the artist, the craftsman, the populist, the romantic, the elitist (not many of those left, I'd imagine), the improviser, the planner, the businessman, the shot-tester, and the poet...among others. And while there's the land and the client to deal with, I think architects still have (some) freedom to choose which of those hats they'd like to wear, or at least to emphasize (if they are so blessed as to have a menu to choose from)
Peter