1) Barcelona 2011:

Many regard them as the greatest team of all time, the Pep Guardiola-managed Barcelona side of 2011 was a treat to watch for every football fan. The Catalan giants were nothing less than magnificent and outplayed almost every opponent they faced. They dominated every footballing stat in almost every game from ball posession to passes completed percentage.
The holy trinity of Busquets-Xavi-Iniesta in the midfield made it look like they were playing in their own backyard irrespective of which stadium they played in. While, Barcelona talisman Lionel Messi was at the peak of his prowess. His brace in the semi-final against their arch rivals Real Madrid was a masterclass to watch, especially the second goal he scored after almost dribbling past every Los Blancos defender.
The Catalan giants humiliated Sir Alex Ferguson-anaged Manchester United side 3-1 in the Champions League final. Barcelona’s front three, Messi, Pedro and Villa all were on the scoresheet at Wembley while Red Devil superstar Wayne Rooney scored once. This very final will also be remembered as one of the most one sided final ever in the history of UEFA Champions League.