Ghost Hunters:
Rather than split the show into 2 sections with 30 minutes dedicated to each investigation, dedicate an entire show to the investigation. Stop sensationalizing. The show started great, but now the dramatic pauses, hyper-sensationalism, and over mix with dramatic music and sounds seriously bites into the credibility of the show. I was a big fan, but now its hard to heard the real EVP's, see the real evidence because its always cutting to commercial with hints of some dramatic event. The reality has been lost in favor or dramatized "Reality TV".
Paranormal State:
Ryan Buell and Chip Coffee made that show. Without them, it was just a very meek representation of its future self. I'm afraid the damage may be too much at this point for the show to make it big again.
Hauntings:
Although I enjoy the show, its almost 100% recreations and recollections. No investigation. So it has its place as a documentary, but not as a real paranormal investigation show. Its like comparing apples to oranges. I would put Hauntings more into the category with a semi-realistic ghost story show. I think this show is good for what it is, and I wouldn't change much.
All in all, and I may be biased here. I think the future of many of these shows (at least the first two) is on the decline. Which is sad, and I think more the fault of network television, and less the fault of the groups themselves. As we move into the future of Television and Video I think you'll see more of a move into the world of selective internet reality in favor of force-fed TV shows. The Hulu and YouTubes of the world will become more organized and take market share from the network stations. I think that's one reason we're right on track here with the Live Investigations. I think the foot is in the right door, and we're pioneering something that will soon become defacto standard.