Technically, the other two swords in ALttP were still the Master Sword, only upgraded in some way: the L. 3 sword was the Master Sword after it had been tempered, and the Golden Sword is what I believe to be the "true" Master Sword.
Anyway, Gilded Sword for me, both for appearance and functionality. The Biggoron Sword was nice at the time, but a recent playthrough of OoT made me realize just how "meh" it really was.