Well, what is your favorite drink to get. It can even be alcohol. My favorite, to be honest, is either a milkshake or a Pepsi. But, if you ask about alcohol... A screwdriver would be my choice. Or really anything with vodka. Just a little, though. 

Well I love either Fanta or Mountain Dew.

It varies depending on my mood.

If they sell chocolate milk I get that if not I get apple juice.

If I want soda its Pepsi.

And if I want something alcoholic, I get cider and black.

Those would be my favorites

Water. I try to drink plenty of water everyday, and I always get water when eating out. If I get a refill, I get whatever diet soda they have.

One of my favourite comedians used to order a water with every meal when he ate out in a new town. When he went on stage he always asked "How's the water?"
In a way it was his measuring stick for how sane or insane the locals were.
If the water he drank was not good and the people agreed? Then he knew he would not have to water down his act.
I read this once and employed it everywhere I go. Though I have modified it to a degree. Put my own personal addition to it.

I order a water and a tea.
Tea being a fairly simple beverage to make in any american dining experience. (Not the fancy green teas. The simple kind.)

It is a good trick to employ and it works.
You would be amazed at how many places mess up a simple beverage like tea.
It is one of the oldest, still served, non-alcoholic, traditional drinks I can think of.
How can people screw this up?

Before you ask... No I am not an entertainer.
It is just a good idea to know how much effort people put into their craft or the simple things. You would be amazed at how many things have declined since I was a teen and began employing this measuring method.
As for the water? It is impressive to see who is honest and who is not.

I hope the decline ends sometime. Same goes for the other.

For the Simple strait answer?
Tea.

Good Luck To All.
I'm done. Stick a fork in me.
Peace.

My favorite drink to get is usually Coca-Cola, Pepsi, Sprite, or Water.  

xXBad-InfluenceXx : that would be fanta if there wasn't fanta i would pick dr.pepper

I just get whatever is cheapest and that's usually water which you can just put Splenda in it to make it sweeter and there you got a drink that is cheaper and alot more healthy.

xXBad-InfluenceXx : I would actually also want milkshake! But probably the chocolate flavour.

when im eating out , i drink soda or water and the flavor of the soda is sprite .

Cherry Coke or just plain water. Water is very important and I do my best to not let any other drink, whether it is a milkshake or glass of milk take water's place of importance in everyone's daily lives.

Irn-Bru the true scottish drink! -

I'll usually have diet mountain dew, mellow yellow, orange flavored soda, coke, sprite and many more it simply depends on my mood or how I feel.

My favorite drink is cola so every time I go into a restaurant or just want to drink at home I always drink it.