My commute/touring bikes have dropped bars, but the bars are about the same height as my saddle, so I'm a bit more upright than some with a more performance-oriented setup. Since my "sit-up" bike had buzzy MTB tires, I appreciate the way the tourer rolls, even with flat-resistant tires. I try to find commute routes that have fewer traffic lights and stop signs, though I'm not sure that would make a difference in the bars I prefer. Because of my bar position, I don't feel like I'm limited as far as visibility goes; I can check behind me before I change lanes without a problem. We don't usually have high winds (15 mph/25 kph or more), but when I have to commute 10 miles into a headwind, I appreciate being able to get down into the drops. On those days I may reroute to find more sheltered routes through neighborhoods, or even take a single pannier and leave shoes at home.

All that being said about my preferences, your preferences may vary and I'll respect them even though I may disagree with them.