I have a super-liner....It is the same color of my truck ..2004...and it looks as good as the day it was sprayed...no fade..chaulking..and still retains its high gloss...
I carry wood..coal..gravel..steel beams..and not a mark on it..no tears...
I did alot of research before I got this...the most important part is the coating material....what the product is made of...
this may help you out some...they have a forum also...
Bedliner home page
if the 2 you have listed is your choice..go Line-x...I seen Rhinos after a year and they were chaulked..faded..and they spray it thick cause of inferior coating and they tear...
here are some specs on the coating...tensile strenth is what i looked for...that provides the tear resistance and durablility...
Bedliner spec link
AL