I think sweet heart table is becoming more popular than head tables. Head tables are convenient if no one in your wedding party is together or married. For my wedding one of my bridesmaids and one of my husband’s groomsmen were dating each other so if we were to have a head table with my maid of honor her date and my bridesmaid and her date than the table would be off balance and not look beautiful. For my cousin’s wedding, my brother was the best man and his girlfriend was a bridesmaid as was I. If they had a head table they would not be able to sit together or they would be off balance if they did.
Sweet heart tables also make the bride and groom feel more intimate and I believe it brings them together and unifies them during their special day. Sweet heart tables are more special if the bride and groom have custom flutes or decorations only for their table such as candles, a unity ceremony valuable and other engraved items.
For my wedding we had a unity sand ceremony that was fun and brought us together during our wedding vows and it was displayed at our sweet heart table throughout the reception. We also had an engraved mirror that beautiful candles were displayed that also have our names and wedding date along with our custom flutes.
This is taken from the knot.com
A sweetheart table is a small table set up for just the bride and groom at the wedding reception. The happy couple sits together, facing their guests, with their wedding attendants and families at tables in close proximity. The advantage is that you get to spend time together and enable your wedding party to sit with family and friends. If you're not comfortable with being the focal point at the wedding reception, you can have a head table. Your head table can be similar to the other reception tables or it can be a dais table (elevated), to stand out. The head table can consist of all the wedding attendants or include the parents, siblings, grandparents and anyone else who is very close to the bride and groom.
Some cute ideas for sweet heart tables are linked below:
Here is an awesome blog post from the weddingbee.com