I work at Jay Peak, so I can give you the low down on what's going on right now. In the past, Jay has not put the same focus on park that many other eastern mountains do, mostly because we have had other priorities when it comes to on-hill development. However, this year, we decided to step up our park game by partnering with SPT and having them build us several features and work with our park crew to create parks that were flowing and constantly changing. We also hired a new park director who has a very creative eye and is working hard to see that the park progresses in the right direction. The improvements have been astounding, and the parks this year have been great. We recently tore out our intermediate park (to make way for pond skimming) and have set up a plaza on Stateside with a bunch of cool features. Check it out:
The 720 park is still going strong as well, aided by mother nature's refusal to let winter die here, so the jumps are pristine and look like they will be standing for quite a while.
So, decide for yourselves, but in my slightly biased opinion, Jay's parks are definitely worth coming to, especially now that all the other mountains are closing and there aren't that many good parks left to hit.
Oh, and that DFD isn't useless, it just sounds like you're a little afraid of it ;)