My first three summers, I worked at a camp that had one and two week sessions. It's fun you get to work with so many kids throughout the summer but after three years of it, doing the same thing every week got really boring. I now work at a camp with 2, 4, 6, & 8 weekers, which I really like. The schedule isn't too repetitive, you get to know the kids much better, and the overall schedule isn't rushed or anything like my previous camp. Plus it's really fun watching the progression of some kids from week 1 to week 4 or 8.