Both terrible.

I really like anime Joker ngl. I didn't had an opinion Joker much but now that an anime of him was released, he became super cool to me

The anime version is more cunning, composed and manipulative.

Appearance wise he looks like an old fashioned clown but at the same time his story is rather tragic because unlike most versions of the joker we don't really get a backstory for him. Joker for all grandeur and good performance is nothing more than a sad clown trying to distract himself with something fun. That's why he suppresses his own memories.

I haven't watched the anime so I don't know if he's actually good in the anime, But I absolutely hate his designs from the first moment I saw it i didn't like it.