Well there are as many opinions on this one as there are good options. I run at least one suspension setup on my stable of vehicles from each of several main vendors - BC, Wild Horses, Duffs and Cage..the Cage stuff for a current project and not installed or tested yet, but I've seen good reports by others. I've been happy with every one of the above, frankly.
I also have a an old-school K-Bar-S bone jarring no-flex 6" lift under a '69 and a Skyjacker 'softride' setup under another..Softride my arse.;D Point being..most of the old-school lift equipment has been 'flushed' from the que and pretty much everything on the market now is good flexy equipment.
You can't go wrong with any of the folks I first listed..IMHO