Been away for a few days - hence the delay in responding.
In terms of advantages of Win8.1 there are a few obvious areas:- Support for the new full screen Apps and the Windows Apps Store
- Faster Startup (up to twice as fast) and Shutdown (up to 25% faster)
- Slightly faster performance overall (around 10%)
- Browser performance much improved (50%+) using hardware acceleration
- Improved Battery life on laptops due to better energy saving methods
- Upgraded Security features - more resistant to malware attacks
I had not heard of Pokki before and having looked it wouldn't be my choice
- it may be that if its design appeals then Win8.1 would be better for you
Classic Shell replicates the traditional StartMenu interface which is my choice
- but does allow you to access the Win8 Start page at any time
The main things that annoy me about Win8.1 (once Classic Shell is installed)- The half baked GUI, parts are "Metro" style while others are Classic style
- The random replacement of system controls with dumbed down "Metro" style panels
- The new ribbon menus of Windows Explorer, I find it slower to access features
- The dumbed down menu system for Internet Explorer (plus the two versions Desktop & Metro)
- Loss of some classic controls such as Manage Wifi Networks
Once you have started an application there is really little difference between Win7 & Win8 - until you trigger an external service like printing
- and a few older applications are more compatible with Win7, but most will run on either
As I said before if I had Win8.1 already installed I would likely stick with it
- but if installing from scratch my choice would be to go with Win7
- but this is really just personal preference for Classic Windows interface (stuck in my ways at 58)
GWX Control panel has been updated several times recently and is currently at v1.6.0.1
- and has just aquired an installer version in addition to the standalone exe version
- latest info here:
http://blog.ultimateoutsider.com/2015/11/the-gwx-control-panel-faq-frequently.html