No way pissing takes 2nd place. First of all, unless you're a woman or a freak, you're standing. There's nothing to read, and you've got to pay attention to make sure you hit the bowl and avoid your pants. This is especially critical when you really have to go.
There's a much lower risk of misfire associated with dropping the kids off. Unless there's something REALLY wrong with you, it's impossible to miss. You can read, play board games, receive a blumpkin, whatever your heart desires. Aside from blowing the ol' load, the feeling of evacuation is simply unparalleled. Of course, if it's one of the wet ones, you may be in for a little extra cleaning back there. And if it's a rock, you may have trouble sitting and walking. Other than that, it's the (second) greatest feeling in the world.