Crawdad,
I have owned some of the rifles you talked about, and I tend to like characteristics of each, but there are differences between them when you compare them to the characteristics of the original classic 1/2 stock rifle. Take a look at the photographs in the Cody Museum of the Hawkens and plains rifles (they show top, bottom, left side, and right side profiles of the original rifles) verses the contemporary factory rifles that were made in the 70 and 80's. They are slight differences in entry thembles, nose caps, butt plates, wedge plates, sights, etc verses the originals. I have shot (and in some instances owned) some of the brands that were available back in the day and had good results with each of them. I am a bit biased toward two brands of barresl used, because they were easier to work up a load than the others. However, that could have been an issue with me being new to the sport and not having my head on straight at that time. I love all of the reproductions you discussed, and wish I had one of each to keep in house because I am a Hawken lover from the very first day. These folks were making an effort to offer the customer a rifle that was close to what the original Hawken looked like verses what other companies were doing when they put a Hawken name on a rifle that was not like the orignal Hawken rifle. All said and done, I like the GRRW Hawken best out of the three you listed.
Roger Sells