In the great debate about which is more important, form or function, I prioritize function. Ultimately, I don’t think “important” is the right word. Form, style, design must support and enhance functionality. Then the overall experience is better.
The user experience is what’s most important. “Form” takes functionality higher, makes it better. When done right, it turns users into fans. Neither is more important. Form and function are both critical to creating quality. And that should be the goal.
Although I definitely don’t know as much about this topic as you do, I do agree that both work together to create something of quality.