Crowdsourcing - wedding layouts (slightly desperate)

So, we recently realized that we are approaching the four month mark. As in, we have about four months before we get married. Exciting and also terrifying, because we've mostly been busy procrastinating. After intense and stressful research, we booked the venue, signed a catering contract and hired a photographer. Then we gave each other high fives and stopped doing anything for a while.

I've been adamant all along that we are going to do top down wedding planning. This means that we start with the big stuff and work our way down to the details. We don't buy stuff just because we think we might be able to use it. We don't try to force colors to work in a venue that doesn't want to cooperate. We're coming up with an overall scheme, deciding which details will make the most impact, delegating or dropping everything else and then meticulously creating lists of what we need in order to complete the projects we've chosen.

And we've been stuck on tables. I don't get stuck often. I tend to weigh the pros and cons, do a quick gut check and then move on. But we've been wallowing in table indecision for the last three weeks and it's preventing us from getting down to anything else. I feel ridiculous. Even in the throes of indecision, I know that the tables are ultimately not going to make that big a difference, but I still can't pull the trigger. D doesn't want to make the call because he doesn't have a strong feeling either way and I clearly do. It's a tough spot. Price is equal for the two layouts or I would have let the money decide.

The decision feels slightly more complicated, because we don't fit in the room we originally intended to use for the ceremony, so everything will be taking place in the same space. I'm not even willing to consider hiring people to move chairs around post ceremony, so people will be sitting at their tables for the entire ceremony and reception. This makes the flow of the evening a little more difficult as well, and I'm sure you'll be getting another rambling post on that sometime in the near future. I apologize in advance, but what's the point of having a blog if you can't try to force strangers to help you make your wedding decisions?

Long tables

{rectangles! - to scale image of  the layout, click to see more detail}

Pros
feels like a family dinner
photographs well
easy for us to walk up and down the rows and chat with people
slightly bigger dance floor

Cons
harder to move around (is this true? the furthest you'd ever have to walk is 16 feet, which doesn't seem like much to me)
can only really talk to the people directly next to you and across from you
and the biggest one - our venue is a courtyard with a somewhat uneven surface, and I worry that it will be really hard to get the tables even


Round tables

{66" rounds! - to scale image of  the layout, click to see more detail}

Pros
easy to walk around
more conversational (so I've been told)
less likely to look wonky on uneven ground
requires less in the way of centerpieces (um, we calculated the square footage of centerpiece for each layout)

Cons
more wedding-y, less family dinner
aesthetically less pleasing to me in our space
less defined aisle? (I think I'm just tacking this one on here to try to bolster support for the long tables, honestly)

So, if anyone made it all the way through that, thoughts? Specifically, as party guests, do you have a preference? Should I abide by the pros and cons lists and just go with the round ones? Sorry for the completely narcissistic post - I promise that once we get this settled (and a couple of other nagging issues - SoCal DJs that won't make me want to die and that I can potentially afford, anyone?) we'll be moving onto the more fun parts and the pictures will be prettier.

Edited to add: You guys are amazing! Thanks so much to everyone who has chimed in. Hearing everyone's opinions and experiences does make it easier. I probably should have noted a couple details - we will be doing arranged seating regardless of whether we use round or long. I don't want any awkward high school cafeteria moments where people have to seek out empty seat. Also, our round tables are 66" wide and will seat 10, just barely (we did check in person) so they aren't quite as large as the 6 foot tables you sometimes see. Our rectangular tables are 30" across, which is pretty comfortable distance for talking to the people on the other side (again, we checked in person). The rectangular tables are arranged with restaurant standard room between them so hopefully it wouldn't feel anymore crowded than a restaurant. Marrying an architect has major perks.