Taking a cue from mshilarious' idea in the "favorite mics" thread...
Of course, given the wide range of prices, it's important to compare apples to apples, but people have ones they don't like for sure (see, e.g., the famous "Schoeps sound like mud" meme).
In live recording, a user can be as much a problem as the mic. But one mic, even in its price range, that IMHO always sounded like crap was the Coresound Cardiods. I often got good results with the Coresound omnis, but I was never able to pull a very good tape with the cards....
Similarly, I have not enjoyed the sound of the AT 853 hypercards at all. Some apparently swear by 'em, but every time I've used them, I have regretted it.