I like a smaller (not tiny) windscreen, mounted on a Madstad mount. That way, I can adjust it, I have found very useful during precipitation, once on my V-strom, riding in freezing rain (yes, freezing rain, so slippery I couldn't stand, but with studded tires, I could still proceed faster than most) I could adjust the wind screen, and my face shield, so that the precipitation blew right over my head
I hate big tall barn door windscreens, had a loaner bike from my dealer once, that had one, got caught in the rain, glare was horrendous, and during the hot days, I couldn't get wind, and felt like I was going to suffocate behind it, glad it was only a loaner