The venue you choose, the food, the flowers, your centerpieces, etc. all say something about who you are and your tastes. When it comes to choosing your music this should be a reflection of you and your new spouse as well.
When it comes to the music, it should also be a reflection of the two of you. Keep in mind however that you will be having guests of many different age ranges. You want to have some current music, oldies, and popular dance hits as well.
Happy couple that personalized their music: