Hmm, I'm having a hard time thinking of something.
I've played plents of janky games over the years, but I usually end up enjoying those as well, be it for the ambitious ideas they failed to live up to or the accidental charm that can result out of badly thought-out design...
I can't remember the last time I played something that flat-out qualified as true and utter trash.
As for games that I personally hated playing, Resident Evil 6 with its patronizing love of taking away control of the camera all the goddamn time and Kingdom Hearts 3 and its soulless, corporate feel (re-Mind excluded) would be my picks.
Those games do absolutely look like big-time money though. I'm not going to begrudge anyone for liking them. (Or call them actual bad games, for that matter)