Is Advent Children REALLY better then SW?

[f f freak]

having to follow laws of the universe

If it had to follow the laws of the universe then there would be no magic in any final fantasy and the spirits would not be there in SW.

First of all, you face the same archers, and they stone your party, and the stone status they inflict is cured with softs. So, no. The arrows have nothing to do with it.

Really I don't remember ever having to fight those archers.

Spirits are obviously not real

ahem yes and of course neither are the characters in final fantasy thus you could make up whatever story you want about them.
So therefore if my point is incorrect imprecise and irrelevant then Your point is imprecise, irrelevant and incorrect about spirits not being real. Neither are the final fantasy characters so you could make up whatever story you wanted about them.