Yes.
There are several reasons folks favor 4 over 3, including:
Because a lot of people prefer Part 4's pseudo-slice-of-life, Twin Peaks-in-modern Japan style to Part 3's Around Half the World in 50 Days style.
Because Morioh feels more alive as a setting than the entire list of countries visited by Jotaro's team in Part 3.
Because Josuke is a more interesting and dynamic protagonist than Jotaro.
Because to many fans, Kira's brand of evil is more sinister and disturbing than Dio's kind of evil.
And last but not least - because those people have the benefit of knowing how the rest of Part 4 plays out, so they can make a more informed judgment.
And I'm not sure how Part 4 is any more "shit-throwing" than Part 3 when we're talking about Stands, an inherently limitless and bonkers element that is central to JoJo 3+.
I'll add to this list by saying that I love how much more of a presence Kira has than Dio. He's had two entire episodes dedicated to him just living his life. DIO was just never around and was therefore less threatening and less likeable imo. And I love DIO.