If you go to my web site, and look in the Photo Gallery under Other Installs, you might just get your answer.
Based on all of the correspondence I've received, the High Sierra gets the nod. I've installed a couple myself, although I've never personally owned one. The quality is consistent which speaks volumes.
Personally, I prefer the HiQ if for no other reason than the length doesn't change with frequency. This fact points out a couple of shortcomings most screwdriver designs have, and that is weather sealing and sturdiness.
Some of the lessor designs are so bad, you can't drive through a rain storm without getting the insides wet.
When the antenna is extended to its full length (75 meter operation), the antenna is at its weakest point. Some are so poorly made they actually flop back and forth on their screw support.
So what ever you choose, make sure these two very important points are covered.