1. Windows
1.1. Pros:
1.1.1. Boots quickly, about 8-12 seconds.
1.1.2. One of the additional feature for the user of WIndows 8 is that you don't have to search Adobe reader or any other pdf reader for the pdf files.
1.2. Cons:
1.2.1. Windows 8 has a totally new default interface: Metro. When I look at Metro, however, I see gaudy colors, boxy designs, applications that can either run as a small tile or as full screen with no way to resize or move windows. Where have I seen this before? Wait, I know! Windows 1.0!
1.2.2. The security issues that Windows faces may discourage some.
2. Mac OS X
2.1. Pros:
2.1.1. A dedicated app for browsing and buying games
2.1.2. sandboxing effectively means that applications have to work independent of each other and will require specific permissions to carry out certain tasks – this is being seen as a way of removing the possibility of installing a malicious application or a virus from stealing data.
2.2. Cons:
2.2.1. OSX is only compatible with Apple Mac computers officially
2.2.2. OS X requires luck or some knowledge to use all the basic features.
3. Ubuntu
3.1. Pros:
3.1.1. Ubuntu is Free & Open Source
3.1.2. Virtual Desktops are perhaps the most impressive ‘wow' feature of Ubuntu. And not only do they look cool, but they‘re a tremendous boost for productivity.
3.2. Cons:
3.2.1. Parts of the Ubuntu UI do feel a little sluggish from time to time
3.2.2. Frequent crashes