I prefer EdT. Quite much so.
EdT is more airy, sweeter, luminous, delicious, intoxicating, nuanced, yummy and "space-like" with great crystal clear vanillic smell.
EdP is indeed woodier, it is richer and thicker, and it does last even longer than EdT... But, as it is that much more serious, it does not compare to EdT, because let`t face it, Pi is/should be a fun-filled fragrance.