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First off, I will not be saying anything on this as I believe Windows is superior to Mac OS X. Now, without biased opinions, why do you think Mac OS X is better than Windows.

How about telling us why we should bother jumping through hoops for you?
 
A pure technical answer:

Unix is the world greatest OS. Its fast, lightweight, server grade, secure, multi threaded and used in all mission critical servers.

NeXT Step was genius by adopting Unix and put its own GUI over it. That have always been Unix (linux) problem: The usability. An open source BSD Unix with an Apple GUI = perfect. Windows should do the same thing. Unix kernal and its own GUI. The problem is that MSFT makes its money on upgrades. They can not make a good OS, since people wont upgrade. They have an insinuative to ship crappy products.

Unix: 64 bit in 1995. Windows: Lets say that all Windows 7 use 64bit. 12 years later.

Performance: Top 500 computers in the world: Zero Windows. 500 Unix/Linux.

With a unix workstation I have uptime of years. Have about one kernel panic per year. And I get angry and screams when it happens. Windows users reboot a couple a time per day. They are so used to problems that they don't even see them or care anymore. They believe that virus and malware is normal. They have a myth that "the reason for virus on Windows is because its so big". They don't understand technically that you cant write a virus for Unix.

And its thanks to Unix we today have the mobile revolution with iOS/Android. Windows doesn't work on mobile devices. Its SINGLE THREADED. Something that UNIX have managed to do for 50 years. Sure: Windows8 mobile will solve this problem by using NT kernal. A Kernal that MSFT have not programmed, but they bought. The NT kernal is so slow that MSFT have not been able to use it on ARM until now.

2007: Iphone 416 mhz.
2012: Windows 8 phone: At least dual core 1.5ghz. Most quad cores to get NT up and running on a mobile device.

Security: Unix is over 50 years old. Over a billion computers, devices, servers.
There are ZERO viruses. There are ZERO malware. There are a couple of scare ware (under 40). Compare that to PC there 70% of PCs are infected by malware/virus. Why? UNIX = The Virus needs root Access. PC= people are logged in as administrators to be able to install programs. The sad thing is that for the first time Malware have been spread widley on a Unix platform: Android. The Apps on Android are installed as root without password and since no one audits the programs there are millions of infected Android phones. (2011 a security firm said at least 5% of Android phones have malware)

With 10.8 Apple really steps to another level of security. Every application is sandboxed and programs have to be signed. (users can bypass this, but idiots that don't understand how things work should not bypass this = they are totally secure from Virus/Malware. But not ScareWare. And ScareWare works only because people think in a PC way.

The "open" hardware of PC have made it impossible to get it work. There is over 300 million different hardware configurations.
MSFT can't optimise Windows since it does not control the hardware. Apple have accelerated the GUI with graphic cards and Altivec the last 10 years. That leads to a brute force approach with X86, vs an integrated approach with PPC/ARM. In raw horse power X86 is faster, but in real tasks an optimised program always is faster.

The interesting thing is that MSFT is doing an Apple and locking down the hardware. WindowsRT and Phone the hardware is dictated by MSFT. This means that MSFT have a chance to make it secure and work. It will be really interesting. At the same time, it kills innovation. Nokia can't release a PureView Windows phone, since MSFT haven't certified it.

Windows: Windows7 is the best windows. The first Windows that is ok. It took them 30 years to make a working OS. Users believe that they use windows by choice. "Its Open" The fact is that if you want to buy a factory made PC its preinstalled with Windows. Dell/HP/Samsung/Sony/Levento. All only have PCs with preinstalled windows. MSFT have a habit of not following standards to lock their users in. If I want to game: I have to use windows thanks to DirectX. MSFT could have used OpenGL and other open standards.

And that is one of the most funny things. Windows/Android users believe that Apple users are "locked in". Apple follow industry standards. MSFT/Google don't. The only "no free" thing with Apple is that I have to use Apple hardware if I want to use Apple hardware, but if I use Windows I can have different brands on the computer. Same with Android. You are still locked into windows/Android or Mac if you use them. There is no difference

Apple "closed" (integrated) Apple Hardware/Software. On iOS: Apps have to be approved by Apple. But HTML 5 is totally open and free. Write any app you want for that. (I still meet to many PC/Android users that believe that Apple censors websites in iOS)

MSFT "open" (fragmented). X86 hardware. But you are forced to use Windows.

Android "open" (fragmented) different hardware. But you are still forced to use Android. You have many app stores.

Do people understand my point? Open/Closed: The difference is almost only that you are locked to a different OS.

MSFT makes bad products. The simple fact is that they have never succeded in a market where they have had competition. Over 30 year old company and they still make 94% of their profit from Windows/Office. Xbox is the only thing that today make money for them beside Windows/Office. But MSFT lost tens of billions to make Xbox successful.

That is why Windows Phone have failed. People have seen products that work: Android/iOS.
PC users have not seen products that work.

We will one day see a paradigm shift when Android for PC is released. That will hurt and finally kill of MSFT. Just like MSFT killed Nokia and Apple/Android killed RIM/PALM.
 
-Visually appealing (beautiful UI)
-Simple to use for anyone (kids and adults)
-Spotlight (find anything, anywhere, at any time, this is the real deal right here!)
-Great process management (Activity monitor and Terminal can be used for this)
-iStat menus (though not a part of OS X, a fantastic 3rd-Party system monitoring app for temps, CPU usage, RAM usage, network speeds, etc.)
-Mac App Store (great for those who don't like to venture out into the web for apps, purchasing Apple software and new OS releases)
-Game Selection (though there aren't as many games on OS X, all of the best ones are there)
-GarageBand (best user-friendly music creation application I've used to date)
-iMovie (makes it easy for anyone to make a quick video or home movie)
-Disk Utility (best volume management software known to man)
-Messages (iMessage client for OS X, which allows you to message anyone with an iOS device running 5.0 or newer, or any Mac with Messages installed)

The list goes on and on.
 
Mac OS X is not better then Windows 7, nor is Windows 7 better then Mac OS X, it's all about preference in my opinion.
 
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