How do you pronounce Eliana/Elliana?

I'd be inclined to pronounce Eliana as Ee-lane-ah but Elliana as Ellie-ar-nah. From the abbreviations you are suggesting I think you're pronouncing them as Ellie-anna which fits too. I guess with the one L I sort of miss the I in Eliana so I prefer it spelt with two Ls.

I do prefer Elliana to Annika- I think its a prettier, more youthful name (but I know some older Annikas).