Windows 10? Man I feel like I'm on an ad-infested website and I need to be careful of where I click. But I'm definitely not objective here.
Lolz, I heard that already... with Windows 2000. So many (me included) spent serious time trying to strip XP of all the crap, because "Win2000 was just perfect".
In reality, XP (like 2000) was just another pile of shit. They patched the hell out of it with SP2, and still it would get owned and owned.
Vista and Windows 7 have made using Windows much safer, and Win 7 refined the interface enough to be a substantial improvement over XP. Win 7 was probably the pinnacle of pre-touch/pre-cloud Microsoft.
The main difference so far is the shortcut used to switch keyboard layout, and enabling Wi-Fi sharing in 10 is very straightforward.
The software I use in both feels just the same.