okay this is how it works. kael armor overall blows for rogues. ss is the best for rogues at least. kael armor i figure is gonna be uber for tanks and stuff with the nice ac but the stats blow. usually when i see rogues in this armor its because their guild has moved onto kael faction and they dont want to do HoT anymore.
this is nowhere near the best class specific gear in the game like zereh mentioned. go to high end PoP/luclin zones and that is where the best stuff is. mostly elemental/VT.