I prefer Eve, Ève, or the Arabic Hawa and the diminutive Evie. I do like the Spanish diminutive of Eva though - Evita. Evelia is also a neat variant.Edit: Replied to Pink Princess by accident, meant to reply to Perrine.
I've been so bored of Eve and variants (especially twee-vie Evie) but hadn't come across Ève. I love it! So much more elegant than any of the alternatives