Some people are natural heelflippers, and most are kickflippers. (My theory). I like kickflips more because I learned them first, and I still have trouble with heelflips. I've come so close to sacking myself on heelflips its been pretty painful. But then skaters like lindsey robertson or theotis beasley will do heelflips into rails and out of manuals, and it looks so stylish. I think heelflips are harder and therefore they are done less, but I say a switch flip looks better than a switch heel anyday (along with all other variations). A 3 flip looks better than a laser flip, even though its much easier to do.