I used to always do rows until I read here about sewing sections. However, I still label with numbered sticky dots all the way across the row. And then I just have to tell myself to double check the math so the blocks get matched up correctly (1 goes to 8, 2 to 9 to make Section 1; then match 3 to 10, 4:11, then connect Sections 1 and 2 ,and so on).
When I watch Love of Quilting, Maryanne Fons always sews columns--says her brain works that way but there's no right or wrong way.