Militarily, the Brits and French were beaten up by the Kaiser, only the American help changes significantly the outcome of WW1. There were internal papers of the British Defense Ministry, saying that they had money for just 4 more weeks. Then the US joined the war...
It was pretty arrogant from the French to ask for reparations and take away 1/4 of the territory. I can´t judge Wilsons domestic policy, but he was definitely right with his idea of the sovereignty of the people. Letting the people decide would be the best solution - even today in Chechnya.
changes = changed
The French demands all but guaranteed WWII. The reparation bills were so high that the German currency had to go into free fall because it couldn't be paid. Only after such bitterness could a Hitler receive the vote he did, although he did not receive a majority vote (30%, in fact) in the fateful election of 1932. Hitler's favorite speech in those days was about the Versailles Treaty. Germany had stood down it's army, not knowing that the peace treaty they would finally receive would be so drastic.