Air Force boot camp training only lasted 6 weeks when I was at Lackland AFB, but I think they've extended it since then, I don't know. People think that the Air Force is not as demanding as the other branches, but it really depends on the assignment. After my Air Force boot camp graduation, I was assigned to communications training. The Air Force recruiter told me that communications was a great assignment, even better than intelligence work.
I'd say the advanced training school experience was a 180 degree turn from boot camp. During boot camp, the drill instructors supervise practically every move a recruit makes. We marched to meals, we marched to drills and we marched back to the dormitory. The first thing you need to get out of your head during basic training is that you are going to do things your way and on your time. It's all about working as a group to get through whatever situation the drill instructors put you into.