I LOVE Irina! Irene, too. I have a hard time choosing between them, and my preference goes back and forth with my mood. Today is an Irina day--it's gorgeous.
I've tried to warm up to Milena, but it sadly reminds me too much of melena, a medical term for tarry, black, blood-filled poop. If I could shake that thought, I think I'd like the name...but I can't.