I rarely drink or buy milk but I like the 3.8% sometimes for me and my cats. They only get a whisker so to speak
I like to add whipped cream or some of that 10% stuff to get the fat % up
On the non-milk side, this coconut milk is amazing
Ripple Pea Milk is great too, very smooth and somewhat satiating
I'm guessing you're not from the states because that's a very common term in the U.S.
Whole milk has nothing to do with pasteurization, although when you see milk on the store shelves in the US, it's typically going to be pasteurized.
I don't think it's usually advertised terribly, clearly, with percentages, but my memory is that it's 3.25 or above milkfat by weight.
I want to say the ratios are more like what you would find in a natural milk anyway, but I don't recall for certain if that's correct.
In the end, all milk is mostly water, but skim and 1% to me typically taste more like water. The extra fat makes it much richer.