Minty?
I'm mainly running Windows at the moment.
Because it mostly does what I want and supports the bits of specialised hardware that I have (satnav, power monitor and blood glucose monitor) without any special frigging about like installing Wine.
I also have a Mint install as an alternative to a Live CD for when I need to get down and dirty with stuff like rescuing failing drives with ddrescue.
One thing I noted was that the built in performance monitoring tools in the default install are better under Windows, and that W8.1 is better than W7.
I just wanted to monitor the disc access. Sytem monitor doesn't do it. You have to install another package. This includes "sar"; oh, good, I remember sar from Unix. No, it doesn't run because you have to edit a configuration file to turn on data collection. I don't remember it being this hard under Unix.
So my current take is that for low level stuff like working with discs without paying for a commercial package Linux rocks.
For entry level users who just need a web browser, mail program and office suite it is wonderful.
For slighly more advanced daily use it starts to get frustrating. No doubt a week or so finding all the bits included in Windows and adding them and the pain will go away. However it was a little dispointing.
Looking back, I used to use Fedora then Ubuntu a lot on dual boot in the XP/Vista days. However since W8.1 I haven't even got round to installing dual boot, and the Ubuntu on the W7 system was fired up once in a blue moon to update it but not much more. I do have an old system running Mint full time but I very rarely need to use it.
So if Windows starts to be a big problem I can move to a Linux distribution but otherwise why?
Remembering now that I was a fairly early adopter of Linux and the fora always used to be full of newbie posts saying "I've just downloaded Linux and I'm never going to use Windows again!" Nobody seemed to post "Three months of using Linux and it gets better every day!" I did idly wonder how many went back to Windows when they realised their favourite software wouldn't run but couldn't be arsed to admit this.
Senility warning: I've just rushed through all my W10 and back again up/downgrades to beat the deadline only to realies that I'm a month early.