It amazes me how people love bashing MS all the time. Those who say they'd rather install Linux then just install it and stop complaining
I have on most of my desktop stuff at home. The WinXP install broke sometime around 2010. Still haven't reinstalled it or upgraded. Though you're spot on with the commercial software for some cases, which brings me to your other troll point:
As for IOS, don't make me laugh. I've yet to meet an I.T professional who'd rather use that than Windows. IOS is for posers who like to sit there and look 'hip'. I like to actually *do* stuff with my PC other than watch YouTube or a few video's.
Apart from the awful grammar/spelling mistakes that would make a Grammar Nazi explode (and mistaking OSX for IOS), yes you can do most of the stuff you do on Windows in OSX. And you can also do UNIXy stuff as well, which on Windows means either installing Services For Unix or a Linux VM. And a lot of IT professionals will choose OSX as their main OS, or even Linux above Windows. You're just hanging around with the actual posers.
Hell, Windows 8 sucks so much I actually bit the bullet and switched (back) to Mac/OSX last year. And this is despite me hating the iZombie Fanboy effect, Apple's attitude under the last Jobs years and their patent trolling on round corners, iOS walled garden and such. But Microsoft's lame attempts at forcing themselves into their users is far more insulting than the Apple way. Far, far worse. Sure I could have simply bought a new laptop, wipe out W8 and install Linux but I would have been giving MS money for Win8, which I don't want to. Buying a Mac means I don't pay the MS tax.