While I do agree with some of your points, but let's examine them.
1. OS X is not more efficient or easier to use than Windows 7. The jury is still out on Windows 8.
2. While apps are easy to install on OS X, they are no easier to install than Windows 7.
3. I 100% agree on the laptop front. Apple laptops are VERY well made.
4. Agree, but there are anti virus apps for OS X. Linux is far more resistant than either OS X or Windows.
5. OOB, yes, but pretty much all the great Adobe apps are available for Windows 7 for picture and movie editing.
1. How is Windows 7 more efficient? There is no Mission control/ Exposé feature, or launchpad, or dock, or easy gestures (I know there are some in W7, but IMO they are a
little more devoted in OS X)
2. I really meant to say "apps are easily available" meaning you can go on the MAS, built right into OS X, and access many apps for Mac, that install and work seamlessly within the OS
3.
4. Although there
is antivirus software, that definitely means that you do not need to use it. Although there is some OS X malware that exists, they mostly infect Macs through security holes in Java etc. There are no known viruses out in the wild for Mac OS X. That being said, OP you can always download a utility called
Onyx. It is useful for keeping you OS running clean and fast, and is very safe to use…
5. Yes, the Adobe suite is available for Windows as well, but you miss out on Apple's apps for Mac like Aperture (image editing), Final Cut (video), Logic (recording), etc, as well as the many other apps available on the Mac App Store.
OP in my opinion, a Mac would be a great next computer for you, but it is really your choice. Maybe do some research and compare prices with PC and Mac. Then you should go to the closest Apple store to you and get on one of the many Macs that are out on the floor and just play with it, or maybe get an employee to help you learn Mac. Hopefully you will like it
but that is something for you to decide