Why does Death the kid like the number 8 더 많이 then 0?

Because the number 8 is 더 많이 detailed than the number 0 which is just an oval and 당신 can divide the number 8 evenly.

because 당신 can cut 8 esacly in half and it will stay even

even zero can divide 의해 its picture it can be symmetrical but if is divide be its number it can not divide anymore

Easy question, if 당신 ask me. Have 당신 seen him in his Insanity-mode (during the manga)?
I don't think he would want something like that ever again; and the number 0 represents "nothingness", doesn't it?

Some people don't consider zero and actual number, just a placeholder