Hi! I'm starting to over think things for our reception, and I was hoping I could get some opinions

Our reception room/hall is a little on the smaller side and I'm trying to figure out the best way in which to utilize the space for seating. The venue has both long rectangle tables & 5ft round tables for seating. I would prefer to do round tables for the look, however if using the long rectangle tables will give us better seating, I am totally open to doing that. Has anyone ever used long rectangular tables? How did it look as either a guest or if it was your wedding? Our guest list is about 120 people (about 90 adults, the rest kids) including the wedding party. Here is a link to the floor plan of the hall for dimensions.
http://www.auburnhall.com/floor.cfm The Banquet hall is where the reception will be held, the lounge room is a room with some couches and extra seating for people to relax in, and the lodge room is where our ceremony will be held. Sorry if this is long, I look forward to hearing everybody's opinions and ideas!!