Le killer de crowd

Who is the major yawner feud that is responsible for thinning out arenas all over the US? Roman (now with senior citizen by his side) vs Shane (with Big Daddy Uncool), Kofi (with New Day) vs JTTS Squad (with zero heat), Rollins (now with his main squeeze) vs Baron (now with miss pinup marine fifties-enthusiast lady)?
It’s gotta be the mixed tag.  Dave said on the radio show this morning that PPV numbers for Stomping Grounds were “stunning” in terms of how terrifyingly bad they were.  And RAW was the lowest attendance for the show in something like a decade.  Corbin and Lacey is DEATH.