Hey Jude
Yep. hands down.
It's about 7 minutes too long, for starters.
Every time I hear that song mentioned, I think of an old Steven Wright line: “I’d like to perform everything the Beatles ever wrote ... I won’t do all of Hey Jude.”
Haha! Hey, Jude was the first one I thought of.
Quick story that I still chuckle about...
Sitting in a local pub one night, a guy with a guitar in the corner taking requests. The fellow sitting next to me, Fred, an old Texan about 6 beers into his night. He sounded much like Grandpa Bear on the Hillbilly Bears. Mumble, mumble, mumble, shotgun, mumble, mumble...
The guitar man started up playing Hey, Jude.
Fred calmly puts away beer number 6 and orders up 7. Tilts his head slightly to listen... Then he rolls his eyes, reaches for his fresh beer and says, “Aw, dang... Hell, that song sucked when it was new and it ain’t got any better...” :-)