I like risers when I'm commuting to class (short commute) I feel like i have more control with risers. Maybe due to upsweep/backsweep?
Funny, I've always felt most in control in the drops, especially when cornering hard. This, of course, is not helpful if you are running risers or bullhorns. When I was learning to race crits, they told us to stay in the drops at all time for maximum control, whether we were in the wind or not. Not sure how scientifically valid that it, but it goes along with my own experience.
And if multiple hand positions are a plus, road drops are hard to beat.