I reviewed them a long time ago for UKC http://www.ukclimbing.com/gear/review.php?id=2112 Basically if you are going for a whole set, if they are going to be main bigger crack protection, Rockcentrics might be better just because there are more of them, but if you are buying them to use in conjunction with some cams - so you are happy with just four - then the Torque Nuts are more flexible.
Dumped my Rockcentrics last year (never liked them as much as the original, but heavier, hexes) for DMM Torques which cam much better so yes, I'd say go with DMM.