My guess is you are taking the test in person... There are multiple views on this question. I have my opinion that is supported by the fact that out of 4 possible ways, there are three available options. The only order that is not available is taking the IR and a W A first in case of a test center exam followed by verbal and quant.
My theory and you can choose to believe it or not is that there is an observed advantage in taking IR and AWA first followed by verbal.
That is because you need to warm up before the test. Like with everything, the first pancake is always off, the first class is a mess and the first everything is usually messed up. Being first (the pioneer) is often the opposite of being successful. So you want to make sure that you warm up in case you take your weakest section first. You want to spend 15 to 30 minutes solving various questions and warming yourself up before the test. If you go cold, you’ll be warming up on the real questions and messing them up.
I can also see the number of people taking verbal and thinking they did not do well, and crumbling in the rest of the test. You need to make sure do you have the mental fortitude to isolate each question and not stress about questions in sections but only look forward.
You need to decide what works for you. Try taking practice tests in diff orders and rehearse it. Then pick one and stick with it....
Posted from my mobile device