Fender Styles... Which Do You Prefer?

Happy New Year, everybody!

I have a Freightliner Cascadia that I pull a side dump trailer with. I have a pretty useless quarter fender in front of my pusher axle and individual fenders on my pusher axle but nothing else for fenders on my drives. I have some mud flaps hanging on the front of my trailer that catch most of the stuff coming off of my drives by not all of it. Shattered the left rear window of my daycab Cascadia in November and did it again two days ago. I do almost all of my driving on gravel roads and my drive axles keep throwing rocks. At $350 per window plus the cost of losing a day of billable labor... I need to do something to stop this.

Straight to the point, I'm getting fenders. I prefer the look of the full over-the-top fenders pictured below. I only pull the side dump right now but will likely expand into doing some low-boy/detach equipment hauling at some point. But... from the places that I've called around to, the single fenders similar to the ones in the second picture are cheaper. I'm not crazy about how those look but I'm more about the bottom line and functionality than looks.

The only thing that I can think of to justify spending more money for the fenders that I want is that the single ones could be damaged a little easier in off road applications like what I'm doing. Not only am I primarily driving on gravel roads but I'm driving in and out of rough jobsites and into corn/bean fields in Nebraska. I'm not very nice to this truck at all.

Does anyone have any opinion about what style is better, one way or another. I'm especially interested in which style does a better job of keeping rocks on the ground and not flying through my back windows.

As always, any input is greatly appreciated!!