Agh, so many choices! My head is spinning. I wish I could offer sage advice but all I can say is I'm glad you have options. Let us know your decisions! Looks like you ordered my two favorites, the Fryes and the Ralph Laurens.

For white sandals, try the German company named Ara, sold in good shoe stores in Canada. I have these, I love them, they are very comfortable yet the patent white makes them chic:

Black open toe sandals: I found some by A2 Aerosoles at a Globo store that were surprisingly comfortable.