Goodmark was the first on the market with licensed Challenger R/T hoods made of steel. The reports have been good. I have no experience with the AMD hoods, but their other parts are getting good reviews. I have one of their bumpers on my Duster and the quality is excellent.
One consideration: The new hoods come WITHOUT the angled scoop inserts, and I don't think that those are being repopped.
One last thing: A friend with a 71 Challenger bought an R/T hood at a swap meet. It was his first E body and he was inexperienced. The webbing that spans across the underside had been removed and the edges smoothed over. The previous owner did such a good job of hiding the modification, he didn't know that they were supposed to be there! The webbing adds significant strength. With the webs missing, the center of the hood was shaky at freeway speeds.