I voted "Twist and Shout" simply because it exhibits a formidable rock force that the Beatles aren't particularly noted for with few exceptions.Hard driving and at least nearly mind blowing showcase of truly high spirited and overwhelmingly sizzling high octane musical energy,a trait also shared exemplified by "I Saw Her Standing There",but in that case,to a lesser degree although it was a fantastically befitting B-side to "I Want To Hold Your Hand" in America.(In England,"Hand's" flip was,in stark contrast, the marvelous harmonies of "This Boy")