The hardest languages are Chinese, Japanese and Arabic for English speakers. It takes 1000 hours of study to get from beginner to intermediate level. Spanish is a very easy language to learn for English speakers.

if you ask me,i think that english is the easy one,and arabic is the difficult one ,,,,.........?am i right,because although, i'have been studed arabic for more than 12 years and i'm arabic,i still do mistakes when i'm speaking it,but english,just 3 years ago .............. yours med

From the viewpoint of Chinese (Mandarin speaker), perhaps it depends on your own native language, the most difficult language might be Arabic or Sanskrit, (Maybe not the most difficult 2 in the world), Actually, I don't know much about them, but their alphabets seem too special & hard to master after all. & the easiest language, as far as I know, might be English, (Maybe not the easiest one in the world).

Some people think "Basque","Finnish" & "Hungarian" are the most difficult languages in Europe.