Here are a few images of different ways to set weddings that your guest will remember.
This image the Altar Background is a large Runner with hand Calligraphy of the couples wedding vows. It brings a more intimate feel to the room and personalizes it to the bride and groom.
The circle has symbolized Unity and Eternity at weddings. Why not do your wedding ceremony in a Round. This makes a perfect fit for a wedding ceremony.
A round seating set up will be totally unexpected and different. No one should have a problem getting that perfect photo of the bride and groom exchanging wedding vows, and no more sitting 10 rows away usually there is only 5-6 at the most depending on the amount of guest.