With Germany being partitioned into so many different zones and having the nation split in two by people who had a much closer relationship with Germany over centuries, I think they'd be a little more gung ho on trying to overhaul things (out of spite or revenge maybe) and things undoubtedly changed again when east and west reunited - lots of history between all the countries involved.

US and Japan, the relationship is much shorter and Japan was seen (before the war) as the most "civilized" Asian nation. Heck the US kind of didn't care when they were annexing Korea and going to war with Russia. US was a bit more self serving and didn't see any other country that could stand up to the communist bloc in Asia. In Europe, the UK and France could probably rebuild and be a good counter weight even if Germany didn't pan out 100%. Again, hard to pinpoint - interesting to think about why one country did a huge 180 and another just.. didn't lol.