I had a set of Skid-Row plates, front, engine, t-case, gas tank, from about 2002 - 2008 or so, by which time, they were so beat to crap, I had to put them out to pasture.
The gas skid was intact enough to keep though.
I replaced them with Shrockworks skid plates, as the Shrock plates protected more of the underbelly, especially the t-bar areas.
Mounting of both was about the same, almost bolt for bolt...and both used high quality steel, and super tough powder coating.
Quality-wise, I'd say they were about equal.
Performance-wise, the Shrocks worked better in the t-bar areas, and about identically elsewhere. I was concerned about the t-bar areas though, as some buddies had scored the bars on rocks, and then had fatigue failures of the scored bars....and I wanted MY bars to be protected.
They cost about the same back at the times I got them...You'd need to go their respective web-sites, etc, to compare for current pricing.
New Skid-Row Plates:
Old Skid-Row Plates: