Attribute order – 2000+ items

Hello everyone, this is a odd one… so i have a store with just under 3000 individual items.

Now the first say 1500 have attributes in a differnt order. e.g – size-brand-colour.

The next 1500 have attribute in this order… Brand-colour-size.

Is there an easy 1 i can make them all the same order – Brand-Size-Colour without having to go througha nd manually drag them to order in each product… Im hoping there is some sort of code that could order them…. Only has to be front end,

Tried a few things, no luck.

Any help would be Great.

All the best