When choosing the layout for your reception venue, one decision is where the bride and groom will sit. They are usually set apart from the remaining tables, whether at a sweetheart table with just the two of them; or at a head table, including the entire bridal party.
In my experience, most couples choose to have a sweetheart table, due to the dates of their bridal party. Usually they do not want to separate the dates for the evening, or they do not have enough space to include them on the head table, so the sweetheart table seems perfect. Choosing a sweetheart table will also give you a few moments to yourselves and soak in the day. I also feel that it is more inviting for your guests to greet you, because they do not have to talk over a head table, or slide behind the head table.
Here are some examples of sweetheart tables and head tables at the Francis Marion Hotel: