I always suspected being a professor was near the top - but I think they only looked at the stress level of associate/full professors.
Money Magazine and Salary.com rated careers on salary and job prospects. I think the number one job was computer engineer, but being a college professor came in at number 2.
GRADES: Stress: B / Flexibility: A / Creativity: A / Difficulty: C
Average pay: $81,491
10-year job growth: 31.39%
Total jobs 2004: 1,759,864 Forecast 2014: 2,312,403
Average annual growth (including new jobs and net replacement): 95,289
Career description : Postsecondary teachers instruct students in a wide variety of academic and vocational subjects beyond the high school level that may lead to a degree or to improvement in one’s knowledge or career skills. These teachers include college and university faculty, postsecondary career and technical education teachers, and graduate teaching assistants. Postsecondary administrators plan, direct, or coordinate research, instructional, student administration and services, and other educational activities at postsecondary institutions, including universities, colleges, and junior and community colleges.