At least he's tolerable compared to most other 90's anti-heroes.

So much this. All the others are more interesting in their own ways:

Jonathan – Has flat personality by intentional design, so gets a free pass + lived life like a man.
Joseph – Has badassery and personality.
Josuke – Same as Joseph, but much more grounded and relatable. He is his father's son, after all.
Giorno – Italian Jotaro, but better because he actually has a good reason for his cold personality.
Jolyne – Character development. You SEE her toughening up, unlike Jotaro, who was tough for no reason. Also, if her part gets animated, more fap material homoerotic fan art to admire.
Johnny – Character development + anti-villain + unique character flaws physical and psychological +
yaoi doujins
Gappy – Mysterious, eccentric, woobie, dat hat