Best Aftermarket Suspension Set-up

Ok so I'm looking for opinions on aftermarket tubular k-member set-ups. A little background on what I'm working with.
1968 Dart 560hp 499ci low deck. 727 TF, 3:91s, Mini tubbed, frame ties. If you've been on this site for a while the name John Dillenger may ring a bell. he engineered a homemade setup to eliminate t-bars with coilovers etc. I installed years ago and am looking to replace it with more scienced out setup.
QA1, Hemi Denny, RMS, AJE. What do you like what don't you like?
Man they have taken it easy on you so far. These threads are usually a blood bath of opinions. Anyway, my vote is HDK. Besides Denny being a great dude, his product is high quality. I've got at least 2000 miles on mine and 150+ autocross runs and haven't had a single problem.