I agree with real0395...What is she used to? If she's used to Windows, even though she maybe open to both, Windows will be what she's most comfortable with. Therefore, more partial to. The 2 OS's are similar, but different. Someone mentioned no right click & I personally used to right clicking. But...MAC can do the same with a 2 finger tap. I believe you can also configure a mouse that has a right click feature, so I don't think that will make that much of a difference. A track pad for the MAC is more powerful than any I've found on a Windows computer. Those are just a couple of things that are different.
The point about OS support is somewhat not true. Both will support hardware sets up to a certain time frame. Windows 10 isn't supported on all previous hardware sets. One is & has been a free update to the next version for years which is MAC. Windows on the other hand has thru the years mostly required a charge for an update. Although that's different at this time, either company may change it's philosophy at anytime.
If you come from MAC to Windows or Windows to MAC there will be a learning curve. Someone may come from a MAC & say, why can't I perform this double-tap function on my new Windows machine that I could do on my MAC...Then you advise them, oh, just right-click.
I have found that MS appears to be slowly moving towards a full on subscription service which may entail a yearly fee, like Office 365 has done.
Windows:
PROS:
-Countless Apps available
-Most software is free out there (That doesn't mean most of them are good :smile
-Most hardware support available
-OS updates free (For how long is the question)
-Touch/Stylus Support
-Tablet to PC supported (You can take your hybrid from Tablet to PC mode)
CONS:
-Still questionable how long updates will be free
-OS has become more locked down...User has less control - Essentially requires all fixes, even if you don't want them.
-OS has become more intrusive appears to want to advertise in OS
-OS crashes, although much less than the past
-Although lots of hardware is supported, you will have more problems with drivers, compatibility
-Still have somewhat of a sense of I'm using BETA software - Not as much as previously
MAC:
PROS:
-OS updates free
-Solid/High Quality Hardware
-Excellent/Fluid (Great Eye Candy) GUI
-Amazing battery life
-Quick boot up & log on
-Few OS crashes
-Hardware made to support MAC basically always works w/o compatibility issues
CONS:
-No touch/stylus support without 3rd party hardware/software
-Expensive
-Fewer Apps available (Not nearly as many as Windows)
-No tablet to PC mode (You want a tablet, you use iOS - Of course this is without 3rd party hardware/software support)
-Some MS software isn't as full featured as it is on a PC (Example, MS Office is powerful, but not as powerful as it is on Windows)
Windows 10 is much more optimized for touch, but it still isn't fully optimized for touch - So, you will find things that are just clunky. MAC isn't optimized for touch at all...Period. They don't want it to be. Obviously I want touch/stylus support!
Overall, there's what she's used to & what she will use it for. I agree that it appears (My opinion) like they are putting less effort into MAC & more into iOS. Although they still are putting a lot into the MAC. I would say the future competition (Esp hybrid) will be between iOS & Windows (Maybe on ARM) The iPad is becoming more advanced & surprisingly more competitive with Windows hybrids. What's more 'powerful'? It matters what your needs are.
That all being said, I trust Apple support & their OS being a more complete OS(Much fewer problems) I'm surprised when I find my MAC having an issue. I'm never surprised when my Surface Pro 3 crashes or has some type of issue. Ultimately, as a very experienced Windows user, I would say get the MAC. It's a worthy long term investment. Unless you're willing to jump into iOS world