Which is a Better German Translation of “Will”?

Question

Is it "Wunsch", "Wille" or something else?

The context is an original poem. Both the English and German text are mine.

Wo ist sie, die eine (or jemand)?
Die so "schön, und starke sei. (Konjunktiv)
Die den Wunsch/Wille und die Fähigkeit
Hatte meine Sehnsuchten zu erfüllen..

Where is she, the someone?
So beautiful, yet strong as well.
Who has the will and ability,
My (deepest) longings to fulfill.

Answer 1

Indeed both, "Wunsch", and "Wille" would be correct translations in the context of your poem.

Both seem not to be perfect in this rather romantic setting, where synonyms like "Bedürfnis", "Drang", "Sehnsucht", "Verlangen" or even in a poetical sense "Durst" may be more emotional.

In my suggestion below I chose "Lust" but as it is a bit weaker than will this may be open to the poet's intention.

Wo ist sie, die Eine,
die so schön, und doch so stark ist?
Die Lust hat und auch Kraft,
meine Sehnsucht zu stillen.

In case a rhyme is wanted we may put it like this:

Wo ist sie, die Eine,
schön und stark wie keine?
Die Kraft hat und Willen,
meine Sehnsucht zu stillen.