In my experience TRW is a good brand, in most cases it is as good as OEM, moog however, is in every case I've seen superior to OEM quality.
I went to a seminar on chassis parts, and problem diagnosis that was sponsored by moog. The rep told a kind of funny story about being good friends with the person who designed the control arms on the humvee (military not mall cruiser), they got into an argument when his friend said that he would never see one break, with the guy from moog arguing that it wasn't because of proper design, but rather that the part used the same amount of metal as a Volkswagon. Years later he was off roading with friends and saw one drop from a plane as part of air force training, the parachute didn't deploy so he decided to investigate, and ended up talking with the air force guys, and they let him keep one of the control arms to rub it in his friends face. If your waiting for this story to go anywhere, it's not going to, I just thought it was funny, and kind of shows the mentality at moog, of seeking out problems.