Before I ever heard her name being pronounced in the champion select or her loging screen song I was calling her Vee(rhyming with see), this is how I was reading it, and it made perfect sense, but as I live outside of my motherland, in Anglo-speaking country I learn to adapt really fast to new words and abbreviations, so when I only heard "Proper English speakers" call her Vye(dye) I immediately switched to the second one.
Like pie
amen
This is like asking what's the correct way to peel a banana? (I break mine in half btw, just saying)