YOU SAID:

Hi my vacation was he best ever in the world

INTO JAPANESE

こんにちは私は休暇だった彼は最高の世界で

BACK INTO ENGLISH

Hello I was on vacation He is the best world

INTO JAPANESE

こんにちは私は休暇中だった彼は最高の世界

BACK INTO ENGLISH

Hi I was on vacation he is world's best

INTO JAPANESE

こんにちは私は休暇中だった彼は世界最高の

BACK INTO ENGLISH

Hi I was on vacation he is world's best