Should I go ahead and get the Honda Civic?

I was going to get an Accord but I saw the Civics are selling better.

I would get it if thats what you want to get

Buying something just because others buy the same thing is *STUPID*.
Since you a stupid anonymous troll; yes, you should get the Civic.

Well gosh darn it that's as good as any reason I can think of

Yes

In terms of size, both are among the largest vehicles in their respective sedan segments. The Accord, not surprisingly, is the largest of the two. It's 10 inches longer, which could make a difference in your garage. It's also 2.5 inches wider and 1.4 inches taller, with a 5.1-in longer wheelbase that contributes to greater back seat space.
If size makes no difference to you, test drive both and then decide. Don't let someone else choose "your" car.

I'd rather have an Accord.