I like
Iris. I think it hits that retro sweet spot- not eternally dated, but not yet trendy. I also like that it means "rainbow," and irises are one of my favorite flowers. Some people are bothered by the eye connection, but personally I like it.
I'm not as big a fan of
Ivy, but I don't mind it. I think I would enjoy meeting a little
Ivy. However, it just doesn't give me as nice associations as
Iris does.