truth be told , a more adventurish hybrid of a list " too vast to quantify" would be the worst Pop-songs of the Beatles ; self-admittedly sick of the pop-fop-fab-four marketing they were a aprty to. I'd begin by nominating Sir MacCartney's " You say Hello, and I say Goodbye". Absolutely the worst spew of what would be today considered pure gold for reprocessed SpiceGirls or Brittany squatter-fodder. MacCartney is not unknown for his weakeness for showbizzy "schmaltz" tunes & lyrics. Most of the Wings stuff was pure tripe in this vein.
there ,that should stir the Liverpudley's ;-)