I was actually thinking about starting a discussion thread on what the criteria for a movie to be a good candidate for a remake are. Jamie beat me to the punch.
In the Elm Street thread that's beena ctive this week, it was posited that the NOES films would be good candidates for remakes, because they're essentially flawed films based on good ideas.
I started a thread about a year ago asking "What films would you actually like to see remade?" My opinion at the time was remarkably similar. I was, and I guess still am, of the opinion that remakes should be limited to movies w/ a good premise, but flawed execution. I said then, and I'll repeat it here, that movies that aren't seriously flawed, should be left alone. In support of this idea, I cite Rob Zombie's "Halloween" and the 07 remake of "The Fog". Neither original had any real problems. Neither was really effects driven so even if they were primitive & didn't look that good (and I don't think they were bad at all; they fulfilled the requirements of those films), there wasn't any real need to update them on that basis. And the acting wasn't THAT bad in either. I think opinions around here are near universal that neither remake brought anything new & worthwhile to the table.
On the other hand, there HAVE been good remakes of movies that weren't overly flawed. The most often cited examples are "The Thing", "The Blob" and "The Fly". None of those original films was inherently flawed (although the probably unexpected effects update in "The Thing" was just awesome). But these remakes were good, which shoots a big hole in my theory. So does the fact that I heard a rumor that they were remaking "Them!", and while I initially thought because this was an old favorite of mine, and a damned good exemplar of its sub-genre, a eemake didn't need to be made. But I now admit to some curiosity as to what an effects update could do for this film. Perhaps effects updates are the only reason to remake an already good film, and flawed films SHOULD (but probably won't ever) be the fodder for remake-minded filmmakers?
To answer the original question, I saw two low budget zombie films, "Meat Market I" and "The Ghouls" that both had decent premises but terrible executions (mainly the acting & effects), that I think have the potential to be really cool films if done right.