Too many to name. WWE has such bad acting and cheesy storylines/segments in general that it's hard to pick only a few, but:
-The Bellas feud that we're being subjected to as of late.
-Katie Vick because it was such a desperate attempt to be "edgy" in the eyes pf the mainstream again, plus it contradicted literally everything that had been established about Kane's backstory and pulled focus away from what the real point of that feud was about, which was unifying the WHC and Intercontinental Championships with one another.
-Nearly every Diva's feud from the past twelve years or so.
-Hornswoggle being announced as the General Manager.
-Mae Young and Mark Henry's "relationship."
-Natalya's farting gimmick. Given McMahon's adolescent-like penchant for toilet humor, it's pretty easy to visualize who came up with this one.