Victory in battle of ideologies

If Manchester United had won this evening's Champions League Final in Rome, to what extent would it have validated the private sports entrepreneur ownership model as being the most appropriate one for securing consistent success in European football? Given Barcelona's victory, does it confirm that the supporter-owned club model is just as robust and appropriate in ensuring that a football club is successful? Or is there another way, a still more effective ownership model? And how might the answers to these three questions impact upon UEFA, the EU, domestic leagues across Europe, and organisations such as Supporters Direct?