As long as animated, 2D or 3D is fine to me
But still, 2D could do more than model, like map, background, view etc.
it could make games more varied
and 3D's model is better than 2D
so hard to tell which is better
It all depends on the quality of the game itself. Graphics is an important element, but not the main one.
I can't give an definite answer in your vote, so I'm abstaining.
3D is typically daz or illusion. The former requires some effort or a good base model to look good but the stylized illusion (specifically K) is harder to fuckup. 2D styles can look way more unique but that isn't limited to 2d. For 3d it requires the artist to edit their stuff beyond the bases & plus has the benefits or built-in animations. Overall, 2d when I want something different than the usual, and 3d when I want something animated but still nice.
I mostly prefer Renpy style VNs with only a small amount of game play mechanics. In my eyes they are all 2D games, because they are all using prerendered images, even if some use images created with an 3D engine.