I would say the long sleeved top (saves having to buy the hoodie), the t-shirt and trousers.
My dd hates the combat trouser style as she reckons they are like clown trousers on her.
The leggings are a nightmare too, she needs a big size to get the right leg length but then they are massive round the waist.
Don't bother with the gilet or skort my dd had both and never wore them.