I like silver - it's a great neutral and can take an outfit up a bit. While I love grey in many other things (home decor or even a great pear of slacks) grey handbags tend to look "sad" to me and I hate it when they get a taupe-y undertone.
But, in the end, pick a bag you love and can't help but want to carry! Any bag that doesn't make me carry it at least once a month, has to go. 😊