Hey Allen - Welcome to Lat G! I think you'll get a lot of responses from Vendors and members alike as this is a hot topic and opinons abound! The typical top tier (and high $s) I have seen since I joined are DSE, AME. Jakes and Speedtech. All make a very good product. There others you already mentioned I cannot comment on as I have not researched them, but I know Soctt's Hot Rods makes a similar one in that Heidts/Martz category - of course those vendors will tell you what makes their's better/different form the rest. One option I think you should look into for camber gain/wider wheels/bigger brakes would be to mod your existing sub w an upgrade from DSE, Speedtech or Global West including control arms, coil over conversions, etc. You can possibly do a R&P conversion as well depending on the vendor you choose.
There are many more options and my apologies to anyone left off the list. Just trying to get the discussion started...
