You can't customise OS X, you are stuck on aqua UI (yes it's great UI). you maybe don't know OpenBox and KDE
KDE video
OS X interface is great and you cannot customize it just to prevent it from becoming as bad as the ones available for Linux.
Come on. There are lots of people getting paid inside Apple to deliver the best interface possible. There's a whole team to do that. No matter how much you customize the interface in Linux, it will never get as good as OS X. People in the Linux world usually calls the interface "eye candy". Well, it's much more than that. It's ergonomics. Comfort. And you cannot do better than Apple by customizing Linux.
You have tons of software on the internet. I don't know if you know to use google but before apple fan boys gets mad, please, save your wallet.
Yes, you do have tons of free software on the Internet. But are they good? What about quality?
I do pay for software. I pay for software because I don't want software to be a hobby. I want professionals working on software to get it better and better. I want whole teams of qualified people working on software. I don't want development to get stopped suddenly.
It's hard to make good software without money. Open source is beautiful and all, but how many great software has it ever produced?
Linux is great, but IBM once invested a billion dollars on it. Linux interface is bad because there is so little investment on it. OpenOffice and LibreOffice are good because the source code comes from Star Office, which is proprietary software bought and developed by Sun.
I pay happily for Microsoft Office, for instance, as no other software matches it. I see nothing wrong in that.
Free software is free from freedom . the free for example: Free beer ; It's just a colateral effect. FSF (free software foundation) explains everything. If you don't know, mac os , I mean, XNU (darwin OS kernel that is the base of mac os x) is free and opensource. XNU stands for X is not Unix.
you can see here:
from wikipedia and here:
from apple open source website
Yes. You have full freedom in the open source world. But sometimes it's too much freedom. It's a whole world to be explored, and so little time. I prefer to have OS X and Windows, with proprietary software working out of the box with all the features I need, very polished. Linux is free, but I would have to build my own software from scratch if I wanted everything I can have in the OS X/Windows world. And this is not an option for me, as I don't have the time nor the expertise to do that. And even if I did, I wouldn't be able to compete with full teams of software engineers working at Apple or Microsoft.
You really don't know Linux kernel. Try this:
Operating System Kernels comparison
Linux kernel is the most compatible kernel to everything. EVERYTHING. Guess what. Linux is built by a community for free and open. Seems pretty better than others kernels.
Yes, the kernel may be great, but what about software to run on it?
Once again, you don't know you can change your UI to anything you want.
That's right. But I doubt it that anyone can make the UI better than the one in OS X. You cannot beat professionals.
No you just didn't try it. you don't need terminal to install software anymore. You aren't a Linux user back in time where we needed to COMPILE packages to install the software. Now, you just double click on .dpkg (ubuntu/debian) file and you install it.
Yes. This is how it works in OS X and Windows as well.
Actually are the better supporters than mac's or windows.
Never tried Linux support. I heard that it is great. But I don't know if it is great for everything. Desktop Linux, anybody?
OS X is also light. Only the aqua UI is a quite heavy but is just that.
I don't know about it. Linux is light, so is OS X. I couldn't say which is lighter..
Conclusion,
In my view, Mac OS is a premium version of Linux with some differences. Just that. You have pretty much all tools from GNU, terminal bash etc. Terminal is awesome powerful tool to troubleshoot. I understand the majority of people don't want to waste time on that, but who knows bash, do everything faster than GUI

Also, software that are open source you can compile to mac and to linux but not to windows because windows doesn't share the same BSD and GNU libraries.
OS X is not a premium version of Linux. It is a different operating system and they don't share code. It is nice that OS X is Unix and is stable and fast. But the things in OS X that makes everybody drooling over are the proprietary stuff that Linux will never be able to get. I wish Linux was the best operating system in the world and that I didn't have to pay a penny to Apple or Microsoft to get an OS. But it's not the reality.
Linux, despite being free, is used by about 1-2% of the computer users in the world. Windows is used by over 90% of these users. Even OS X, which is only sold in expensive machines, has a much higher market share, about 7%. Why can't Linux get a higher market share, despite all people say about it? Isn't it the best OS and still sold for free? You can't beat that. Why then people are so stupid they cannot see it?
Because Linux may be great, but it's not ready for the desktop. And, frankly, it will never be. It's good, stable, light and fast. As an OS, it may be the best in the world. But then you need the desktop environment, the software, and everything else to have a whole platform. And then Linux fails miserably, while OS X and Windows succeed.