I have always had bug deflectors on all my 30 years of trucks.
My experience is the best "Deflectors" are the ones that stick up the highest ... yet they're also the ones that crack every couple years from car washes and/or other random things that happen when you're not there to witness it
At the same time, the difference between the taller deflectors and the more sculpted/aero deflectors are subtle when it comes to bugs at 55 to 65 MPH, they work and they do a decent job of minimizing the bugs impacting the windshield ... but at 80 MPH, neither is doing much to deflect a bug up and over the windshield. However, they are both doing a great job of preventing paint chips and pinholes from road debris.
As for the cushions/pads between the deflector and the hood, it's there primarily for the Car Wash Equipment that pounds the edges or flex point into your paint ... AND THEY WORK! The other factor they serve is to keep a profile at speed ( or headwinds) so the deflector doesn't flex downward and have less of an effect of redirecting the air over the windshield. We've all experienced the headwind passing a Tractor Trailer moving the truck with all the wind it's displacing and that same wind certainly affects the thin plastic of these shields.
I looked at all the different Bug Shields/Deflectors on the market and decided to go with the "AVS Bugflector II". I like the styling, I prefer the coverage it gives the front edge of the fenders and it blends in with the curves and design details of the hood and fenders giving it cleaner look.
I drove from Chicagoland to Denverland without any Bug Deflector ... then back a week later with the AVS Bugflector II installed (easy install BTW), and the difference at "legal" speed limits was significant. At 75, less significant and in some spot through Nebraska at higher speeds than that, it only kept the lower third of the windshield 'mostly' free from being a bug swatter. After a wash, the defector certainly took a few 'hits' that would've chipped or pinholed the paint on the hood or blasted the windshield.
I'm not endorsing any product here ... just sharing my lifetime of "Bug Deflector" experience and the results of what I just experienced using this make and model deflector.
BTW: As for the AVS sticker, the truck sat in the Denver sun at 92 degrees for most of the day, that afternoon, I was able to peel it off and wiped off the adhesive residue. Wouldn't ya know it, AVS had Lazer Engraved their logo under that sticker too ... but it's barely visible.
Hope this helps.