I'm in my first real character animation class right now, and I'm just starting to really learn about blocking. After only doing it for a few weeks, I think it's the bees knees. I have a couple playblasts of blocking 1 with just the bare minimum of important key poses. Then with blocking 2 I started adding the breakdowns, and anticipation, as well as trying to introduce some drag. Keep in mind I'm only just beginning to grasp this process.