When deciding who will bake your wedding cake, you need to remember that some bakers are excellent at making a great tasting cake but are not so good at construction. It also happens that some can make a beautiful masterpiece that is not palatable so you need to find a really good baker who can do both if you want to be completely satisfied. To help your selection, you will want to sample a real wedding cake that has icing and decorations on it so you can be sure you will be getting a cake that tastes as good as it looks.
If you already know what kind of filling you want but the baker does not offer it, ask them if they would be willing to work from your recipe. Many times people have asked for cakes that are unusual but are personally significant and the baker has been willing to work with them. If this is what you want, just make sure that you do a test run of the cake to ensure that it comes out as expected.
Another aspect of your cake to keep in mind is how well it will hold up during the wedding and throughout some of the reception. Some delicious cakes cannot handle sitting out for long, such as one with buttercream frosting, so you may need to take into account how long you will be able to refrigerate the cake along with the heat and humidity of the area when making your selection. One possibility to consider is fondant, which can withstand uncomfortable temperatures without a lifetime of refrigeration.