I especially like the ones featuring Kaitou Kid and the Black Organization, although the 13th one was kind of weird at the end.
So you could sum my favourite Detective Conan movies up as:
3, 5, 8, 10, 13 and 14.
No, none I can remember, but you can kind of see the Black Organization as partly inspired by the Yakuza (and other types of Mafia). They have a similar type of hierarchy/structure and partly use the same method like such groups.
And if I remember correctly, Gosho himself said so that there was some inspiration - but I can't specify a source right now.
Mod says: Conan Drill is the source that shows Gosho was inspired by the Yakuza
As a person from Germany myself I can say that "Ypsilon" should be the right way to write it because - as far as I know - it's related to the 20th letter in the Greek alphabet of the same name, which is also written "Ypsilon" in German.