We're having a relatively small wedding (50-60 guests), with guests definitely assigned to a table. My fiancé wants to leave it at that, while I think that it's best to assign seats so that there are no awkward "holes" and then everyone has to move over when others join the table.
What are your experiences with either option?
He'll probably just let me do what I think is best, but he has me doubting my gut feeling.
UPDATE: Thanks for the comments. Our venue has actually asked that we assign seats because we're serving a plated dinner and guests have a choice of mains. Assigned seats will make it easier for the servers and more efficient in general.