Final Fantasy title with best monster designs.

[Thule Esperada]

So the Final Fantasy series has been arround for quite some time, so with plenty of titles to choose from let's say which game in the series do you think has the best overral monster designs. This is a purely aesthethic look.
I personally think Final Fantasy X has the most impressive desings, especially the giant boss monsters.

 

[Choas kills yuna]

I'd say ff 10 or ff 4 has the best monsters. ff 10 has the best summonings.