Speaking as someone who uses Macs regularly at my university:
Maybe MacOS is easier to use if you're an absolute beginner or only have a
very basic knowledge of Windows (in other words, how to open your browser and go to Facebook), but if you have any further experience with Windows whatsoever, OS is the most clunky, unintuitive operating system out there. Every little thing that was a, "well duh!" with Windows is a, "WTF!?" with OS.
You drag a file from a folder to your desktop, and it just makes a shortcut to that folder instead of moving the file. You hit the "maximize" button, it does everything
but maximize the window. And despite Apple repeatedly releasing two-button mouses since 2007, every single one still functions like a one button mouse that will
maybe right click if you hit it in
just the right way (because apparently Apple is unaware of a technological innovation called a "button").
And don't even get me started on how insanely limited the options are. Want to download a cool, free, third-party program you found online? Hope it has an OS installer, because at least 80% of third-party programs are still Windows-only. Want to upgrade your motherboard and CPU? Too bad, because that's all proprietary. Got a virus and you need to run tools to clean it up? Your options are limited unless you're willing to shell out cash, whereas on Windows virtually every single tool I use is completely free.
Then there's the fact that they're just slower unless you shell out six or seven grand (or more) for the absolute highest end model. The $1500 desktop (that price includes the monitor and Windows, BTW) I built four years ago and have only spent about $500 on upgrades for can still outperform the newer, $2500 iMacs I use in the graphics lab every day. There's all this bullshit floating around at how "Macs are better at running artistic software" or whatever, but that's a lie. My Windows machine runs Photoshop, Flash, Illustrator, Maya, Blender, and every other program I've used considerably faster.
People rave on and on about how "Macs are more reliable," but if you take care of your Windows PC, there's no reason it should be breaking down on you (other than freak hardware failure, which can happen on a Mac, too - though unlike on a Mac, the component can be easily replaced). The people who "have gone through like six PC's in four years" aren't using any kind of anti-virus protection, they're visiting sketchy-ass sites, they're not defragging or otherwise maintaining their system. I think someone already made this analogy, but it would be like me filling up my gasoline-powered Cavalier with diesel, not changing my tires for six years, and driving it into a concrete barrier, then concluding that Chevrolets are horrible cars when the thing doesn't run.
TL

R - PC's are just as reliable (if you take care of them), faster, more customizable, and in my opinion more intuitive, all for less money.