I honestly feel flowers for a wedding is a lot of wasted money. Its extremely expensive bridal bouquet, bridesmaids bouquet, groom and grooms men boutonniere, flower girl petals, parents, ceremony decoration flowers, reception centerpiece arrangements, All that adds up I'm thinking no fresh flowers what do you think?
Personally, I am having silk flowers at my wedding (and its outside) because it was one of the items I didn't have a preference. To me, silk flowers can be more dynamic and more workable into a color scheme. And if smell is a concern, you can just spritz some perfume to me them smell however you want! Real flowers can be more expensive and more of a hassle in some cases.
Honestly, if real flowers are really important to you, then get real flowers. If you don't, you may feel cheated or have regrets, and no one wants to feel that way on her wedding day!