Hmmm. I like Emilia, but agree Amelia is what it sounds like and therefore prob easier/less confusing/annoying.
My niece is Emilie, pronounced Emilia, and it's so, so, so confusing. She's Norwegian and it's the way it's spelled over there, but her dad (my bro) is English. You'd have thought they'd spell it with the 'a' just to make it clear it's not Emily.