I am going to go ahead and order before my friends do.
Why do you want to order before?
I am not a fan of being last all of the time.
While it is not good to be last all the time, it is not good to want to be first all the time. The food will be there at the same time so it doesn't matter.
Fair enough. I'll be last this time.
It is more polite to try and allow your friends to order first. Since you are in a restaurant you will all get your food at the same time anyway. Try not to think of it as a big deal when it comes to deciding who orders first.