Nah, Gold Standard whey is no different to the TPW whey or MyProtein whey. It's just a mix of isolates and some hydrolysed whey, and maybe some added glutamine. But really, it's not worth the price premium for that alone. With TPWs flavours, it's not even worth buying for the taste anymore. The time in minutes difference it will be between absorption times really isn't necessary
True Whey has some isolate in it, but it's mostly concentrate or higher concentrate whey, again not worth the premium. Its main selling point is the enzymes in it to aid digestion, but again, do you really need that?
Stick with TPW whey, honestly. From someone who used to buy all the branded products and get suckered into it, you soon learn that they aren't much different to the the supposed "unbranded" products.
If you do go for TPW, use TS6642 for a 250g freebie so you can try another flavour