Paramecia is the top for me, it's the most quirky, unique and versatile, thus quite suitable for OP-verse theme-vise. Those fruits are usually fun, although some abilities can be silly/lame/make no sense, still it's my most preferred fruit, I'd b fine if that was the only fruit type.
Zoan is fine, because it's also kinda quirky and versatile, and to be honest, it could be a special type of paramecia if there was one type of fruits only, and then the abilities would be food-themed, weapon-themed, plant-themed, animal-themed, and so on.
Logias are....boring. I get it, they are strong and before haki reveal they seemed unbeatable, but to me they all are kinda meh. I'm ok with elemental powers overall, but I like it more when the user itself isn't the element, e.g. like with Magellan.