I've used both but only trekking bars recently. I hadn't used drops or ridden a bike in a couple of decades. I hated the flat bars that came on my Fuji Absolute, wished it had drops really. I tried trekking bars and they were much better but never seemed right to me for some reason. Then I tried the Jones Loop H Bar (aluminum) and that works very well for me. I'm not sure if I would like drops even better. The price of doing the conversion (new bar, brifters, brakes) dissuades me from running the experiment. If you take your hybrid off road much the control you get from the Jones bar is as good as from any MTB bar. I think it is definitely a great choice in that case and I do a little bit of that which is another reason I probably won't try drops on my Fuji, unless I were to get an off road bike too.

Ken