Final Quest

You walk into the room, with Torai and Alasse following you, and find yourself in what appears to be an armoury, though it has different swords hanging up instead.
There are five different swords hanging up, each with the symbol of a different element carved onto it:

Ice - This sword is sharp with an icicle-shaped hilt encrusted with what appear to be shards of crystal. It is limber and straight

Water - This sword is slender and slightly curved. Its hilt appears to be made out of a type of blue crystal

Fire - This sword is straight and narrow. Its hilt as a ruby set in the middle of it and is in the shape of some kind of bird

Earth - This sword is made out of bronze and the hilt appears to have the shape of vines carved into it.

Light - This sword is slender, pale, and clear. There is a single white stone set in the hilt which is made out of a strange material which looks like gold but isn't heavy.

You can only take one of the swords, so which is it to be?