Best aftermarket suspension?

im sure a few people on here have resto mods, i dont have a suspension system(front + rear) yet for my B-body ,so im wondering whats the best aftermarket performance suspension out there? some of the ones ive been looking at are:

magnum force
RMS
iron works
XV

i was originally going to go with magnum force cause i liked how you can pick your own options and customize it yourself, and they looked like the had a good track record from all the builds they did on tv shows, but i read online from a couple of people that their product is not that great because they run the coil overs in the shock towers and they were never made to support the weight of the car there. and a few people said theirs caused bump steer.
havent really heard alot of complaints about RMS.
seems like iron works is the same as RMS just more expensive.
and i heard alot of people online say they had problems with XV stuff.

just wondering what some of you guys are using and are pleased with? i dont mind spending the extra coin if its worth it
Author: Nightmare