It's odd because I am a long time Windows user and just recently (2 years ago) bought a Mac. I have to say the things I dislike the most about recent Mac UI is

It's odd because I am a long time Windows user and just recently (2 years ago) bought a Mac. I have to say the things I dislike the most about recent Mac UI is the dock, notifications, and mission control. The dock staple is part of my biggest problem with my Mac. It takes of screen space and is completely useless after I open the couple programs I am working in. Sure, you can auto hide it, but the transition, plus deal with it randomly popping up on my screen make it extremely cumbersome. This is where Windows 8.1 gets things right (and some wrong). You can make the menu on the bottom extremely thin, then use an overlay transition to choose your programs. This is why on Mac I wish I could just rid myself of the dock completely and use Launchpad. I don't understand why there is both. When I minimize a program and want to go back to it I just pop launchpad open and click the app again. Most of all these both work perfectly with touch based screens. I personally don't have any touch based screens yet, but that is the way technology is going and it embraces it while still making it useful for mousing.