GS3, you should post a link to your TVFool analysis so the more knowledgeable people here can assist. Without the analysis it will be difficult for the experts here to recommend a new antenna or to assist in with your current antenna. Also post your home type, is it brick, does it have metal siding, how high up will the antenna be mounted, if attic mounting why kind of roofing does the house have, etc. All will have a factor in how well an antenna used indoors can receive.
All that said I have the amplified version of the Terk indoor antenna (HDTVa). Because of my location it doesn't work well so I'm looking for a better one (have a running thread about it
here in the forum) and have ordered an Antennacraft U8000. For antennas that are within 10 miles of my location the Terk HDTVa seems to work well, beyond that it will depend on the terrain and other factors. I have found that the Terk HDTV indoor antenna
must be oriented towards the TV station antenna location you wish to receive for it to work properly. Which means you could be moving the antenna from time to time depending on which station your trying to watch at any given time.