Like many that have posted, I think I have quite a lot of discs that, while maybe they work for others, caused me to just hang my head in disgust or disappointment.
DISCRAFT:
Impact: Never could seem to get the thing to go straight, and if it did, it had no glide.
Glide: What the **** was this disc SUPPOSE to do? I'm sure it was my fault, but still, hated it.
Nuke OS: I'm sure it was the fact that I got this disc at the wrong time in my "career", but holy hell, I couldn't control that thing to save my life
INNOVA:
Ape: same thing as the Nuke OS
Katana: Started with a Pro that was way too flippy, and then Star, which just didn't shape the lines like I thought they would
Vulcan: I was just learning to hyzerflip, thought these would be great. Too much snap and OAT caused me to hate this disc
Kite: so much promise, a mid that flies like a driver...I wanted to burn it after a week. I will forever curse this disc
Birdie: I thought I could power up this putter, and really take runs at a basket..but lack of glide led to it's downfall and subsequent hatred
WESTSIDE:
King: Easily one of the most unpredictable molds I've ever thrown. Just hate it
I've since gone with an all Lat64 bag. the only discs I carry that aren't are my NUKEs, as they simply just go FAR. But I'm only about 10-20 feet off of them with my HALOs, so they don't come out that much