Amy is a pretty name. My niece (who is 14) is named
Aimee Elisabeth. My sister and her husband chose the French spelling for both names.
Aimee went through a phase where she spelled it
Amy because just about everyone else (teachers, friends, FAMILY) spelled it that way.
Of your combos, I really like
Amy Juliet and
Amy Rose. I also like
Amy Christina and
Amy Katherine.