I found the Project shafts (mines 5.5) had more feel in them, its hard to describe really, but I could feel where the club head was, if that makes any sense. I think they look better than DG's but that is a personal thing. If you are playing to 12 I say get them, they are a beautiful club at address and when you hit them they have a real buttery feeling.
My mate thought they were to much club for me (touch of jealousy me thinks) but TBH I love them, the short irons are peachy from 150 yards in. I also matched them up with 3 Mizzie wedges and to be honest they should last me quite a while.
Just out of curiosity, what are the set you are looking at priced at?