I can confirm that SDHQ's sliders are the bee's knees, if you have cash burning a hole in your wallet and want the very best, they're the way to go.
With that being said, I'm on my 3rd set of Avid Off Road sliders... I've previously had two sets of Avid weld-ons but finally decided to go bolt-on this time so I don't keep losing them when I trade the truck in.
Avid is a shop local to me, but even if you are out of state I believe they are the most affordable option on the market without sacrificing functionality. Brandon uses a simple and clean design. They do the job of protecting doors, rocker panels, etc. just as well as any others on the trail, and fully support the weight of the truck. Of course you can order them any way you'd like, from completely horizontal to extremely tucked, but I prefer 20-degree angles on them personally which enables use as a step and stops door dings like a boss. They give you the confidence you need while hardcore mall crawling in the front row at Macy's when you're stuck between the cart rack and that 11-year-old piece of shit minivan that is parked sideways and hasn't been washed since 2013...