When I first bought my rack I went back and forth between this style of adjustable pin and the bolt-on ones. I settled on these because they use the front-facing holes, which gives you far more mounting positions than the side holes the bolt-on style relies on. That let me dial in more finely calibrated positions for all my plates on both the front and rear posts. I also ended up using bolts to mount mine permanently, so I didn't need the hitch pins at all. If you're constrained by space and want to mount plates on your rack, these will give you the most options.
Performance
Value
Build Quality